I'm SO glad Microsoft is doing this. We have clients come in all the time saying 'Microsoft called me' and lured them into a $300 support contract for, what turns out to be a bogus support service. Microsoft will never call you to tell you your computer is broken. Ever. Google or Yahoo will not either (they only call related to business listings and advertising). There are legitimate support services out there – we offer one and many other companies do. But always beware of any cold call where they claim to be a company like Microsoft AND know details of what's on your computer and what it's doing. This scam is very successful and happens a lot. Have you fallen victim to this and are worried what they put onto your computer? We can clean it off for you!

Microsoft sues tech support scammers for trademark violation, false advertising
Claims 390,000 residents lost $179 million in California alone.