I'm getting calls from this number too. The last one was yesterday (5/13/16) at 8:14 A.M. I couldn't answer and they didn't leave a voicemail. I called the number back but was greeted w/"good-bye" from an automated system before the call was terminated.
Sorry I can't provide more or new info. about the company/people behind these calls. But my best guess is that it's a sales/telemarketing call but have no proof since I've never spoken w/anyone at this #.
I got a call from them as well, when I answered they hung up immediately and they've called several times and every time I answer they hangup they don't leave voicemails or anything
He wants to fix my microsoft windows because my computer sends him alerts of help. That is so nice. The other day I was on the phone for twenty minutes ( i was watching the news on TV ) he got so pissed off when I couldnt do as he instructed. They keep calling. I was a loud horn when I get a real voice.