• Reset the computer, boot from DVD.
• Choose option “Repair your computer”.
• Start command prompt.
• C:\
• CD C:\Windows\System32
• MOVE Utilman.exe Utilman.exe.bak
• COPY Cmd.exe Utilman.exe
• Restart windows
• At the login screen, press Windows key+U, this fires up command prompt
• NET USER administrator
• Login as administrator
• Now repair computer again, command prompt
• MOVE Utilman.exe.bak Utilman.exe