Windows 7 lost my admin account

I had changed my login to automatic. After that I managed to install still programs. But when I started windows again, it didn't let me to change settings which demand admin rights. I'm now a guest and there isn't any other accounts. When I try to make changes in UAC, for example, it demands to log in as admin and "then press yes", but there is no fields to log in and "yes"-button is gray. Is there any chance to get admin back without reconfiguration with Windows CDs. I also tried to recover the system but it demands, of course, admin rights.
 

Question Info


Last updated March 19, 2018 Views 734 Applies to:
Answer
Boot the machine into Safe Mode, then log on as Administrator. If you have not changed the password then it is probably a blank. You will now find that there are several accounts other than Guest. If you reset their passwords then you can use them again.
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