i use Microsoft security essentials at the moment (never will after this). and a virus has just infected my pc, i might even be spyware i don't know the actual definition of it. it is called Antispyware Win7 and it keeps telling me i have numerous viruses and trojans, which i knows is BS. and keeps popping up and every time i go to open an application such as firefox it says no there is a security risk and shuts the application down. i used my mac to download antimailware bytes, because i read that it would delete it, but the virus will not let me run/install the application. security essentials has scanned my pc and has found the threat its self, but when i click clean my computer, it says not found and closes (suppose the virus has took control). please help i have over 1,000 photos, videos and other personal stuff, which i really do not want to lose.