Is this accurate? At what point I should assume that the repair is no longer working/stuck? My computer does not seem toīe in any danger of overheating from running the repairs, and the monitor is only slightly warm. I've read on another forum that this process can take up to three days for a 1 TB hard drive. on 11/17/17 (It has been running for approx. This might take over an hour to complete.' I began this process at around 1:00 A.M. Is running, with the message 'Repairing disk errors. I thought that the root cause of Startup Repair failing-'No OS files found on disk'-would most obviously be solved by inserting my original Windows 7 64 bit installation disk and trying to run Startup Repair again, and I was correct. Hi, this is a continuation of sorts from this post.