Friday or Saturday I was watching a DVD on my Windows 8 computer at home and it froze. I though maybe it was just having trouble reading the disk. I first just waited about 10 minutes, no change. Then tried to alt-tab to another application. Nothing happened. Tried to ctrl-alt-del. Nothing happened. Finally had to shut it off. After restarting, the system said it had to check the file system. I rebooted and after about half an hour, it finished. I then started noticing problems. Firefox did not have the same home page, but my bookmarks were all there. All of the cookies were gone also. My mail tool was having a problem. I saw that the installation file I had on disk was a couple of years old. So, I downloaded the latest copy and tried to run that. It failed. I then tried running the command window with system admin privileges. That failed. I tried all sorts of commands that require system admin privileges. They all failed. I was going to create a new user and put it in the local admin group, but could not create a user.

Anyone have an idea how to restore administrative functionality to Windows 8?

Thanks!