Disable turn off or ALT + F4

Here is one cool trick by using this you can disable turn off or Alt+F4..

To disable it just follow these steps:

1) Go to Run.

2) Type Regedit and press enter.

3) Then in Registry Editor Window go to HKEY_CURRENT_USER/Software/Microsoft/Windows/Current Version/Explorer

4) Now in the right pane right click and create a new DWORD item and name it NoClose.

5) Now modify it's valueand set it to 1.

6) Reboot your machine.

Its done.

To enable display of Items , simply delete this DWORD item.