theres an annoying MS Removal tool that i have never downloaded blocking me from google chrome and a bunch of other stuff on my computer, it keeps telling me im infected with virusesand that i need to remove them, i dont want to pay 60 bucks for it, im fine with the sophos anti-virus. i dont know what MS removal tool is but how can i scan for viruses using the sophos anti virus thing i have now? Thanks a lot! 