What is Windows® ReadyBoost?
Windows® ReadyBoost lets users use a removable flash memory device, such as a USB 2.0 thumb drive, to improve system performance without upgrading the computer. Windows® ReadyBoost can improve system performance because it can retrieve data kept on the flash memory more quickly than it can retrieve data kept on the hard disk, decreasing the time you need to wait for your PC to respond. Combined with SuperFetch™ technology, this can help drive impressive improvements in system responsiveness.