OK, the next step is to use DISM to see if it might find some problem. So open the administrative command prompt again and type the following:
Dism /online /Cleanup-Image /RestoreHealth
Because of your other thread, there may be a possibility of install media corruption. You may end up needing to reinstall using verified media, or you may find whatever is causing your situation, hard to say.
You might check this thread and see if it might apply. If the problem is being caused by some registry entry, it may be hard to find.