I received a call from this number located in Pasadena, California. Caller claimed to be from Microsoft and attempted to tell me that I had infected files on my computer which was then transmitting the files to the Microsoft Server and that I needed to turn my computer on so he could verify my Microsoft License and assist me with removing the infected files from my computer. After wrangling with the guy....and asking him "how can my computer be interfering with your server if it's not turned on?" The guy had an East Indian accent - and was not fluent in English....after messing with him for several minutes I told him "Good Luck" and hung up the phone.