Hi guys, bit of a problem. I have a machine that was running win7, a couple of weeks back I upgraded for free to win 10 but today the hard drive has failed. I don't have any record of the product key so I'm not sure how I'm going to be able to install and activate windows again. Is there any way of retrieving a product key from a dead drive? I've tried accessing the drive from another computer and it spins up then stops.