first open taskmgr see if you see any cpu usage with repair_windows.exe if you don't see it moving then you can go ahead and click stop repairs if the grey cmd prompt is open click on the corner and click the x. Now what I need to ask you is did you ever open windows repair for a second time during the repairs and closed one of the windows repair programs? why I ask is once you tell one of the windows to close it sends a form close and kill's the windows repair program.exe .