How to Disable CMD in any computer ..?

Solution :

• Goto "Run(windows key + R)" type "gpedit.msc" press "OK"
  

  

  Run - gpedit.msc

• Now select "User Configuration" you'll get 3 folder list select "Administrative Templates"

Administrative Templates

• You get list of folder in "Administrative Templates" select "system" folder it will show you list of files & folders.

system folder

• Find "Prevent access to the command prompt" from right side double click on it

Prevent access to the command prompt

• By default it can be "Not Configured" change it to "Enable" and press "OK" 

Note : If you want CMD back choose again "Not Configured" option for enable CMD