If you are running Windows 7 on your PC, and you have an unused USB flash drive, then you can use ReadyBoost to speed up your system. Using a fairly new concept, ReadyBoost, allows you to use flash memory—like a USB flash drive or a memory card—to virtually add system memory and improve performance without having to physically open your computer to add standard memory modules.
Check out this short video from Mike Agerbo of GetConnectedTV to get a better understanding of how ReadyBoost works in Windows 7.
Here are step-by-step instructions on how to turn ReadyBoost on or off …