I have two internal 400 gig hard drives installed on a Dell 2.4 gig machine. The PC is running Windows XP and is 5.5 years old. Everything was fine until recently. I started up and one of the two hard drives was erased or crashed. I am not sure what happened.
When I go into Disk Management (located in the Computer Management section), the hard drive is listed as "unkonwn, not initialized and it is unallocated. I installed the drive a year ago and use it frequently. It had two programs on it.
The last thing I did on the drive was update my Quicken program.