1. Click Start – Run.
2. Type “regedit”.
3. Go to HKEY_CURRENT USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer.
4. On the right window of registry editor, right-click the empty space.
5. Choose New – DWORD Value.
6. Type the value name “StartMenuLogOff” and press Enter.
7. Right-click the new key you’ve made and choose Modify.
8. On the Value Data type the number “1″ to hide the button.
9. Press OK.
10. Restart your computer.