STEP:-
1. Launch Registry Editor.
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList in the
Registry Editor.
Registry Editor.
3. Double-click the Administrator key in the right pane.
4. If the Administrator key doesn’t exist, right-click on the above
tree in the pane, choose New, DWORD Value, name it Administrator and press .
tree in the pane, choose New, DWORD Value, name it Administrator and press .
5. Type 1 in the Value data box, and press .
Note:
To launch User Accounts in Control Panel, you can go to Control Panel
-> User Accounts, or click Start -> Run, and then type Control
userpasswords and press Enter.
Once
you unhide and reveal the Administrator account, you can change its
picture or assign it a password or change the password. In addition, on
the next boot to the Welcome screen, the Administrator account will be
visible, along with all of the computer’s other user accounts.