|If possible you should fix the virus first (see response #1).|
MalwareBytes freebie is good at removing those bogus AV's.
If your exe files are not working then you can download the fix from here:
Although it is a reg file it is quite harmless because all it does is restore
default conditions for exe. Viruses often mess up the exe file association
but this file will NOT remove the Virus itself.
Always pop back and let us know the outcome - thanks