ReadyBoost a built in Windows 7 feature, not well documented, can speed up your computer by using storage space on most USB flash drives and flash memory cards.
ReadyBoost can be turned on or off once it is activated so the storage device can be used for storage, if needed.
For ReadyBoost to effectively speed up your computer, the flash drive or memory card should have at least 1 gigabyte (GB) of available space. If your drive or card doesn't have enough available space for ReadyBoost, you'll see a message telling you to free some space on it. For best results, use a flash drive or flash memory card with at least double the amount of available space as the amount of memory (RAM) in your computer.
ReadyBoost is also accessible in Vista
ReadyBoost can be turned on or off once it is activated so the storage device can be used for storage, if needed.
For ReadyBoost to effectively speed up your computer, the flash drive or memory card should have at least 1 gigabyte (GB) of available space. If your drive or card doesn't have enough available space for ReadyBoost, you'll see a message telling you to free some space on it. For best results, use a flash drive or flash memory card with at least double the amount of available space as the amount of memory (RAM) in your computer.
ReadyBoost is also accessible in Vista