Well I just received this call.
First, it showed up as "0" on my caller ID, when I answered, it rang as if -I- were calling. A man answered with "Hello?".. So that was odd, but when I said hello back, he went into action.
He had an Indian accent but knew English very well. I've called Microsoft customer support plenty of times to know that, that's what Microsoft sounds like. He told me that my computer has been sending many error reports to Windows. I replied with "There are several computers in this household, you'll have to be more specific". He seemed a little confused, but then proceeded with saying "The computer registered to <my first name> <my middle initial> <my last name>." This immediately struck me as odd because while I do register my computers with Microsoft, I have never issued my middle initial. The only places my middle initial exists are on government forms (Birth certificate, SSN, voter's registration, selective service, tax forms, drivers license), college ID and paperwork, and my bank. Not that Im surprised he had the info, just that if he was really just going off of what my computer registered to Microsoft is telling him, he shouldn't know my middle initial. So, with that and the initial "0" on the caller ID, I figured this was a scam.. But I'm a little wise, so I kept going.
He asked me to pull up my Computer Management window, look at my error logs under event viewer and Applications, filter the logs to critical and error, and again very many of those. He asked me to goto the website Teamviewer.com and for me to join a remote control session, and that's when I hung up. In retrospect I should have grilled him about it being a scam and see if he hung up first. I suspect these errors are manually generated from some sort of spyware. I don't think TeamViewer is a scamming website from what I can tell, but that scammers are using this software to their advantage.