I was hit with a virus the other day. It was one of the viruses that pretend to be anti-virus software and keep hitting you with fake warning messages.
I ran spybot and malware bytes, and the virus, i think was removed.
I have noticed that when I right-click on an executable, I get an option called "start".
This looks fishy to me because it isnt even capitalized, and it is very vague.
I have updated spybot and malware bytes, and ran them again, but both programs found nothing.