Recently I downloaded a copy of Total Commander. After installing it, I had a virus. System Care Antivirus is the virus. It prevents the execution of most application.

I found this link. But had to get the removal program from another machine.

http://pctuneup.org/system-care-antivirus-virus-removal/?gclid=CKf9vKHZu7cCFYo-MgodGy0ARw

Tomorrow I will try it out. Will let everyone know if it works,