Hi im new to Tech Spot and desperately hoping someone can help here Had a pc in for a friend which has had a New motherboard, Has an Intel P4 Chip in out of an old pc with a dead mobo, RAM from the same pc, 2 "new to him" CD drives and the graphics card from the old pc So first off i put him in a 160GB IDE hard drive which we had lying around, i should point out here that it hadnt been marked an so could possibly have come out of another pc as faulty Started trying to install windows and it was getting copying file errors, got it installed and installing other software was very slow, then it did a windows update which kept failing to install and on reboot vista kept saying the system config was corrupt run repair windows, each time it did a registry roll back and it came back up - when i checked the error log it gave bad disk error. Then tried to ghost the hard drive but even norton ghost couldnt read from the hard drive So then took a 60GB IDE from our old sever which had worked fine for a few years, installed windows, office, all updates etc without a problem - all looking great gave the guy his pc back and his mouse isnt detected straight away so he hits the reset button on the front of the pc - once windows boots up again it then pops up saying the hard drive has a critical error and to backup and replace hard drive immediately So...... The pc did go home in his car, he says he didnt knowingly knock it or anything but theres a possibility its had a knock, It started playing up straight after a hard reset.... so it could be that? The hard drive has been in the server it was in for about 4 years before he had it anyway But i now have a new HD for him a SATA one this time, but im a bit worried about putting it in incase its something else causing it so wanted to see what you guys think?? Should add ive had no freezing or crashing or bluescreening of any description to indicate CPU / RAM / Graphics even now the PC is still working but saying hard drive failure is basically imminent Am i being paranoid?