Ok, well last thing, windows defender isn't on, Malewarebytes is, when I load windows I can use win defender until I start a scan and it stops halfway and closes and says ''malewarebytes is turned on''.Defender is fine to have on, or off if you go to another AV. And the worries are normal after the issues mentioned in your first post. They will subside.
I should be able to scan with defender and have Malwarebytes on at the same time correct? I used to scan with both at the same time.