Old Version Anti Virus software
MB-clean-uninstall.tool can be downloaded, removing Malwarebytes 4, and it replaces it with an old version 3.
From the filehorse, you can get version 2 also, and it will work again. For some reason the new update for Malwarebytes may not work out for you, as if you would have to do without Malwarebytes. They may have been going through hard times and have a problem themselves with the newest version. Ahhh, what do I know?