Accelerate Windows by Tweaking Virtual Memory
If you have only one hard drive, just leave well enough alone. But if you have two or more internal or external hard drives (not just disk partitions), your PC will be peppier if you keep the default paging file (what Microsoft calls the virtual memory disk space) on your boot drive (the one that holds Windows) and add a paging file to the second drive.
To do so, log in to Windows as an administrator and verify that you have more than one hard drive in your computer: Click Start, Run (just Start in Vista), type diskmgmt.msc, and press




