Here is a cool trick for person using memory of 512 MB of RAM or MORE.
Just follow some simple steps to Increase your system Performance.

1. Goto Start>Run...>type regedit
2. Crawl through the registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
3. On the Right Pane you will see DisablePagingExecutive, double click on it and change the value to 1.
4. Reboot the Computer(Dont Forget).
5. The System Performance will be Increased.

Note: The registry tricks can be harmful to your computer, if you do some mistake in using them, so please use them at your own risk.