If you get The device, \Device\Harddisk0\DR0, has a bad block, Event ID 7 on your Windows computer, follow the solutions mentioned below. Use Macrorit Disk Scanner to scan Hard Disk for Bad Sectors ...
So I'm working on the HDD of a laptop of a friend. I'm not sure wtf was done to this machine, but there has been a bit of reallocation due to bad sectors. Unfortunately, chkdsk seems to be running ...