Remove “Log off” from start menu

Click start button,then click Run

in run dialog box type in regedit


In regedit :

“HKEY_CURRENT_USER\Software\Microsoft\Windows\Curr e ntVersion\Policies\Explorer”

and

“HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Cur r entVersion\Policies\Explorer”

Create a new DWORD “NoLogOff” and change its value to “1? for disabling and “0? for enabling.