using windows XP. I still use my floopy disc as a backup for data. After an update it failed to read the disk, tried many. It comes up with disk not formated. I tried to roll back the driver, this failed. So I put a unsed disk in the drive and tried to format it. The computer crashed with a black screen. The only way I got it back was to unplug it wait a while then plug in at which point it rebooted and run.