ReadyBoost is a disk caching technology first included with Microsoft’s Windows Vista operating system. It aims to make computers running Windows Vista more responsive by using flash memory on a USB 2.0 drive, SD card, CompactFlash, or other form of flash memory, in order to boost system performance.

ReadyBoost is also used to facilitate SuperFetch, an updated version of Windows XP’s prefetcher which performs analysis of boot-time disk usage patterns and creates a cache which is used in subsequent system boots. Continue reading →