My third computer just crashed with the same exact problem as the two previous computers. I was able to run diagnostics on all three, and they all gave the same message, that the hard drive failed. Two of them still boot, but are so slow that you really can't use them to do anything. Both of these two computers are Windows 7, and the third is Windows Vista. We're now down to one functional computer, and I becoming very concerned that the same thing may be happening to it. I'd of course like to prevent that from happening.
My question is if it's possible that there could be anything that would be causing these hard drives to fail. They're all different brands, but they do all sit in the same exact room. So is possible that there could be something with the electrical supply causing damage to the hardware, or perhaps there could be an excessive amount of dust collecting inside the computer? The house is only three years old, so I'd be surprised to hear that any of this is the case, but I also find it hard to believe that I could have so many hard drive failures in such a short period of time out of nothing more than coincidence. Thanks for the help!