When RegSweep scanning tool scan the registry, it provide the progress of the scan. You will get an update realtime as the windows registry gets cleanse. You can even set it so as to scan the windows registry one at a time that you feel you are comfortable and convenient with. You can be rest assured that the scan will be finish on the time you set. Well, if you are critical about peak performance, you can even schedule Regsweep to run as soon as your system starts off.