Got two phone calls today claiming to be the "Windows 10 installation team at Microsoft".
One gave me the typical song and dance that my "...Win 10 PC was sending distress signals to Microsoft" and he would help me fix the problem.
The other one said he was calling from the Win 10 installation team to help me upgrade my Win 7 PC to Win 10...
I called both of them scammers, and they...click!
Don't fall for this nonsense. [;)]