9. Relocate the Swapfile or Virtual Memory file. These files (depending on Windows version installed) are hidden and are usually located on the Windows drive (usually "C:") If there is a second physical hard drive in the system, consider moving to the secondary drive. Ideally, these files work best when located on the fastest and largest (in terms of free space) drive in the system. The procedure for changing the location varies by version of Windows.
For tip 10 follow here-
http://answers.techzim.co.zw/11288/is-your-computer-slow-tips-to-speeding-it-up-10-13