Appropos of nothing, I also got an email today telling me to call an 877 number IMMEDIATELY because if I opened the email, it's important that I contact a Microsoft Certified Agent.
Received a call and they hung up. I don't answer calls unless I know the person. This is Click4Support who was indicted by the Federal Trade Commission except they didn't shut down their call center in India. Same people who spoof their numbers and call themselves Avec Vous and will probably give you another fraudulent name. The person who stated he let them remote on his computer is one of the scammers. Once they get on your computer, they get your unique computer wifi and hardware address and will be able to remote in again even if you get your computer erased or change your router. They will get into your printer if it is a wireless printer and scan everything you print or fax. It is for identity theft purposes and to see if you have your banking online. They are obviously looking for your social security number if you have ever entered it on your computer. They scam people for money and call from different spoofed numbers; probably same call center from India. They are crazy. They call me almost everyday with different spoofed numbers; I never pick up. Scam phony IRS. I will post this so everyone will know who they are.
Don't call; it's a scam IRS. The hackers/scammers are telling you to call. IRS doesn't contact you by phone. Watch out for phony debt collection letters too.