Scam artists from India yet again. Had a problem similar to this last year with the LogMeIn123 scam. It doesn't matter how many times I hang up on them and tell them to leave me alone they keep calling twice a day.
Just received a call from this number 0203 025 9569 from a Indian lady claiming to be from Microsoft Network Support saying that my computer was sending lots of error reports to them. Suspecting this was a scam call I challenged her to validate her credentials and stated that Microsoft would not call me direct. I then informed her I was reporting the number to the Metropolitan Police E-Crimes division at which point she hung up very quickly.
Foreign person calling from *Windows* saying that your PC is sending out false signals and they will help you reset it. Another different phone number and just another scam. Beware as they will hack your PC if you give them access.