How to make DOS Prompt not active

This is the way to make DOS prompt not active to your computer. When we make DOS prompt not active, so the guest user can’t do anything to our computer by DOS prompt. Follow this step :

• Open registry windows, click start -> run -> then write "regedit" in the dialog box -> click OK or press enter
• In the registry editor window, search key : HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp Value type : DWORD Value Value Name : Disabled Value Data : 1; MS DOS Command prompt is not active

Be careful to change this value, if you do some mistake can cause windows crash