If anyone is interested in a fake CMD to waste scammers time, and frustrate them, then feel free to check out the link below and use it. You can put this in System32, and rename your old CMD to something else. It will then be accessible via run box, windows search, and the windows power user menu.
In order to take ownership of system32 and edit files in that folder open a command prompt as admin and run the following commands:
1. takeown /f "C:\windows\system32\"
2. icacls C:\windows\system32\" /grant yourusername:f