A hard drive is not as quick as solid state memory, so it can suffer from read latency. ReadyBoost was envisioned to allow the PC to temporarily store non-critical operating system data on the USB memory flash drive for quicker access. On paper, ReadyBoost has the potential to boost the speed of older PC systems and make running Vista a more comfortable experience. Getting ReadyBoost set up and working on a Windows Vista computer is extremely simple, but does it even make a difference?