This article applies to all computers with Windows 7.
Windows 7 ReadyBoost is a tool that can help speed up the computer by using a removable media device, such as a USB flash drive. The flash memory device acts as an additional memory cache that the computer accesses much more quickly than data from the hard drive.
Only one flash memory drive can be used at a time for this purpose. Many flash drives can be used, but not all. Read the following section for prerequisites.