Follow these steps :-

1. Insert the Pen Drive (1GB atleast) in the USB port
try to prefer 4GB or higher than that
2. Let the PC do what it wants to do to detect it
3. After it finished his work, you have to act smart,

Now do following thing

4. Right Click on My Computer --> Properties
5. Advanced --> Performance Settings
6. Advanced --> Change
7. Select the Pen Drive
8. Click on Custom Size

" Check the value of space available "

9. Enter the same in the Initial and the Max columns

" Now You just used the space of the PenDrive as a Virtual Memory "

Restart YOur PC TO Take Effects

MAKE WINDOWS XP SHUTDOWN SPEED FAST

This tweak reduces the time XP waits before automatically closing any running programs when you give it the command to shutdown.
Go to Start then select Run
Type 'Regedit' and click ok
Find 'HKEY_CURRENT_USER\Control Panel\Desktop\'
Select 'WaitToKillAppTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'
Now select 'HungAppTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'

Now find 'HKEY_USERS\.DEFAULT\Control Panel\Desktop'
Select 'WaitToKillAppTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'
Now find 'HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\'
Select 'WaitToKillServiceTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'

make your windows xp fast

Following is a great tip to speed up your browsing of Windows XP machines. Its actually a fix to a bug installed as default in Windows 2000 that scans shared files for Scheduled Tasks. And it turns out that you can experience a delay as long as 30 seconds when you try to view shared files across a network because Windows 2000 is using the extra time to search the remote computer for any Scheduled Tasks. Note that though the fix is originally intended for only those affected, Windows 2000 users will experience that the actual browsing speed of both the Internet & Windows Explorers improve significantly after applying it since it doesn't search for Scheduled Tasks anymore. Here's how :

Open your Registry and go to :

HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/Current Version/Explorer/RemoteComputer/NameSpace

Under that branch, select the key :

{D6277990-4C6A-11CF-8D87-00AA0060F5BF}

and delete it.

This is key that instructs Windows to search for Scheduled Tasks. If you like you may want to export the exact branch so that you can restore the key if necessary.

This fix is so effective that it doesn't require a reboot and you can almost immediately determine yourself how much it speeds up your browsing processes.