Hey, well basically my hard drive has DISAPPEARED. I tried to boot up my computer and then it said to insert boot disk. So what I did was put the WINDOWS XP Pro CD in, but then when I tried to format the Hard Drive, it said that no Hard Drive could be detected on my system. I tried going through BIOS and even that couldn't detect my HD. I HOPE someone could PLEASE lend me some advice on this topic, thank you!!See if all cables are still properly connected. Try switching IDE and power cables.I checked that, and yes the IDE cables are okay. I put in another HD of a friends and it responded, I am thinking the HD I have is just ruined, but I'm not sure. WOULD there be any possible way to put it in another computer as a slave or something and just clear it out, and then boot from XP cd? Thank youVisit hard drive manufacturer's website and download tools that run from a FD or CD.  The tools will tell you if the HD is bad.Hey, well I ended up just getting a new Hard Drive; mine was broken. Thank you for all the help and advice though, this site was great and I will definately come back again if and when I need some assistance.Just for our information, what brand of hard drive?   Was it still under warranty?I don't know if it was still under a warranty, because I purchased it from a friend. It was a Western Digital 30 gig HD though.There should be a date printed on the hard drive. Or a sticker that will tell you when the warranty will expire.

Assuming this is your only drive, have you set the jumper to SINGLE?