If I were you I'd download a drive test utility to test the integrity of the drive. Most manufacturers have their own utilties. But if your's don't or if you don't know the manufacturer? Then I personally have good experiences with Seagate Seatools. Be aware, though, that the bootable version occasionally can see errors that the WIndows version won't. It can be downloaded and run from either a bootable flash or CD/DVD drive.