Hi, I believe you have been infected with a virus/malware. I would normally recommend downloading and using the free version of [
Malwarebytes] to fix your problem, however I've just read that it may not help. (Maybe what I read was wrong so at least try it out).
You would better off having expert help from another forum such as [
bleepingcomputer.com] or the [
Malwarebytes forums].
Here is how 1 person fixed it, however you have to be careful because instructions provided for 1 person may be completely different for another person, even with the same virus. Also note the date on the messages, 2012.
https://forums.malwarebytes.com/topic/110222-windows-command-processor-virus/
Therefore I recommend getting expert help...