Top Ten Tips To Improve System Speed
1. Let your PC boot up completely before opening any applications.
2. Refresh the desktop after closing any application. This will remove any unused files from the RAM.
3. Do not set very large file size images as your wallpaper. Do not keep a wallpaper at all if your PC is low on RAM (less than 64 MB).
4. Do not clutter your Desktop with a lot of shortcuts. Each shortcut on the desktop uses up to 500 bytes of RAM