I thought the SanDisk install on my old laptop (4 years) as it seemed a bit slow but it was not compatible. So I had to install it on the laptop my wife bought 1 year ago. Installation is quick and requires little knowledge, because fortunately leaflet explains absolutely nothing ... The disc is recognized immediately against I'll have to transfer my system to this new disk to improve performance. But given the use I'm past it. I still mark an improvement in performance. I recommend to install it from buying a laptop to avoid moving his system.