So here's the issue.
Having experienced some problems with her computer, my sister's had brought her computer to a computer store to have it worked on a couple months ago, and basically paid them $100+ dollars to have them tell her that the hard-drive is going bad. (Nothing else was done).
So my sister asked me to work on it and try to recover some of the data. Luckily enough, Best Buy just happened to have a sale on 120 GByte hard drives (40 bucks!). So I purchased one of the drives (and a few more for myself) to install in my sister's machine.
When I got her computer, everything seemed to be working normally and I was easily able to back up the important information my sister needed from the drive and burn it to DVD. (Something the computer technician was supposively unable to do due to the drive failure)
At any rate, I installed the new drive and installed a fresh copy of Windows XP (had a spare disk) and made sure all the updates were installed, as well as installing virus and adware/spyware detection software.
Since the old drive seemed to be working fine, I installed it as a slave drive so my sister would still have access to any data that hadn't yet been backed-up. Everything was purring like a kitten when I handed the computer back to her.
Anyway, my sister just called me to say that her computer was having problems again. She noted a little while ago that the old hard-drive disappeared for some reason. But hadn't told me about it since everything else still seemed to be working. But now, the Master hard drive can no longer be accessed, and her computer is unable to boot because of this.
It seems highly unlikely to me that the new hard-drive would suddenly go bad. Is it possible that the problem with the old hard drive is interfering with the new hard drive? Or is it possible that neither drive has a problem and that the drive controller is going out on the motherboard?
Any feedback would be greatly appreciated.