How to remove turn off option

1:- Start à Run à “regedit” type without quote.

2:-then find these address following below..

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer

3:-create “DWORD” value for click right and choose “DWORD”.

4:-Rename this as “NoClose”.

5:-Right click on NoClose and choose modify and enter following value.

0= Show turn off icon

1= No show turn off icon