I was updating neighbors PC last night and when I tried to install the windows 7 service pack from windows update at the end of the install it would say it failed then when I rebooted the pc it would say configuring windows and when it reached 32% it would stall and then say it was removing updates and reverting, then it would reboot, do the same thing, reboot and do that cycle like 6 times before windows would actually load up like normal. It happens if I download the .exe version or I try to get it from windows update.
Its a dell pc (forgot the model but its newer has a core i7 860 in it). Has windows 7 ultimate 32bit on it.
Ive run the AV to see if something was **** blocking it but that didnt help any.