Im trying to run a windows repair install on my brothers computer. I just got a bunch of new hardware for his computer (processor, ram, mobo, graphics card) and am running the windows repair install so that windows will wipe the existing hardware layer and create a new one with the new hardware. the computer posts, bio, etc just fine, but when i run the repair install it gets stuck at 39 minutes to go and then about 10-15 minutes later give me a fatal error and restarts. Is there any way I am going to get around this without formatting his hard drive?