I have a computer that will not install the latest update. In investigating the cause I found the Configuration Registry is corrupt. I ran sfc /scannow, but it is unable to run. I ran dism /online /cleanup-image /restorehealth - which is where I learned of the corruption, however, it is not able to repair the problem. I used the free WDS 10 upgrade several years ago, and don't have install disks. The computer is running WDS 10 Pro, Version 1607, Build 14393.0. Is there a way to repair the registry?