Caller, whose English is somewhat off, claims to be from a "Windows" technical assistance outfit, addresses you by name and says that your computer is downloading excessively. Offers to help you fix it, but what he is apparently attempting to do is gain access to your computer. His ploy is somewhat comical and clumsy if you are sufficiently computer-literate, but could work on people who have less technical expertise. He's called me twice in the past year.