A couple of years ago, I was out having drinks at my then go to bar, Outback Steakhouse. I was pretty friendly with the bartenders and noticed that every time they would cash a customer out, they had to go out of the bar area, run up front, cash them out and come back. I finally asked them what was going on and they told me that their POS at the bar had gone down and it was going to take the vendor a week to come out to fix it.
Me being me, I offered to take a look at it, the manager agreed. I found that it wasn’t booting its operating system (Windows NT) because of a hard drive failure. I decided to take a shot in the dark and run back to my apartment, flash a usb drive with SpinRite, come back to the bar, booted up SpinRite and told them to let it run overnight.
The next day I came in after work and they had already taken the usb drive out and booted up the POS and it worked! They were so grateful that when I would go in there for dinner or drinks for the next month they would comp everything!
So the next time you get a hard drive failure, try running SpinRite on the drive!