I have some virus on my computer which is preventing me from downloading anti-virus software. I had, and probably still have, the the one where it poses as my Vista Internet Security and tries to get me to pay for some software. I looked on the internet and downladed some malware to try remove it but I don't think I've done it properly. This was a number of months ago but I am still having issues with my computer and need to clean it up somehow. I have tried downloading both AVG free and Malware Bytes, but once downloaded they will not run. I tried to follow the steps in this post 'UPDATED 4-Step Viruses/Spyware/Malware Removal Preliminary Instructions' but I am unable to get do either of the first two steps as I can't get the software running. Help please!?