I have a laptop which was giving problems with freezing and not booting into windows, I ran some checks which suggested a problem with the hard drive which I have replaced. I ran the system restore disc which keeps throwing up an error with pciidex.sys, the disc is a little scratched and marked so I thought I would load windows off an original cd. It boots up to the initial blue screen, loads some files, gets to the last loading windows screen and then reboots. I have tried this several times without success, it doesn't get as far as asking me if I want to load windows or try a repair. I have ran checks on the memory 2/3 times and it comes out as OK. I feel as tho I'm banging my head against a wall at the moment. Anyone any suggestions as to what the problem may be?