How to disable CMD in any system:

Friends we can disable the most
powerful tool in windows which
is called CMD by this trick.

1) Press Win+ R (RUN)

2) Type gpedit.msc and Ok.

3) In Group Policy browse to
"USER
CONFIGURATION /
ADMINISTRATIVE
TEMPLATES" and highlight the Systems Folder

4) Double click, "Prevent access to the command prompt."

5) Change settings to 'Enable' and click 'ok'