Administrative privilege not working in windows 7

[ramishali]

Hi
Windows 7 enterprise was installed in my HP Probook 4540 laptop. Somebody misused it and administrator account got hidden. Now when the computer starts, login screen only shows standard user account and no user account switching etc. when i logon using standard user account then i cannot access registry, group policy as the message come that you dont have access rights. Also when i tries to open something with "run as administrator" then still administrator windows prompt box opens but does not ask for administrative user account name and password also "yes" button disabled.
Is there any solution other than new window installation

 

[Barman58]

You have two options - contact the administrator of the company that owns the copy of enterprise you have and get them to modify the system or purchase and install another version of windows