Received a call from this number... left no voice mail

Received 4 calls from this number. No response on phone.

I have also received several calls from this number, along with a couple of calls from an 'Unknown" number.  I actually got someone to from "Windows Operating System" when I answered the unknown caller, they were trying to tell me something was wrong with my windows operating system.  A total scam!!!  They didn't like my answers so they hung up on me... I guess they didn't like me asking them how they got my number and told them that they were not "Microsoft" because Microsoft is NOT going to call everyone with a window's operating system that get's any type of error. And no I have not gotten any error's on my computer in a very long time (always helps to have a husband that is a computer tech).

Received several calls from this same number (34634264). No answer just dead air. Any suggestions on how to stop this since its obviously a spoofed number?

Caller said that they were with Windows Operating System. I asked them to give the number they were calling, my name, my address, which they did & they were all wrong. When I told them that they were all wrong & told them to remove my name & number from their list she replied with "your lying, your lying" & then hung up.