William bought a solid state drive and didn't really notice an improvement in speed. Leo says that SSDs are faster at reading data than spinning drives because there's no seek time. However, if the PC is older, the I/O bus may become the bottleneck. The SATA port needs to be at least SATA3 to take advantage of the SSD. He may need to get a better motherboard. The newer way to do it is to use a PCIExpress SSD and add a PCIe card. Then he would see a significant boost in performance.