I did the retarded thing and tried to download a flash plug in from a website and got the b.exe virus and the msa.exe virus. I got the processes to stop running then deleted them in safe mode in command prompt. This stopped the two processes from running but i cant access any of my antivirus programs (Avira, malwarebytes, ad-aware). It just says windows cannot access specified device, path, or file. You may not have appropriate permissions.

Im sure its remnants from one of these two viruses but I dont know how to fix it. Any advice would be great thanks