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Hi there and welcome
This is 100% a scam. This message was not from Microsoft and Microsoft would never contact you like that.This is what is known as "phishing" it is can be a very serious problem if you do let them access your computer.Basically what they will do is contact a lot of people with these messages and phone numbers and say that you have problems. Any actual computer problems you have will be entirely coincidental. Usually what they will do is show you the windows error log which always shows a lot of errors but these are normal and on all windows computers, they are not viruses.Next they log onto your computer and lie to you about the numerous problems they pretend to find. Next they will attempt to get you to pay a few hundred dollars to "fix" the issues when in fact they actually do nothing too helpful.
Always remember, no legitimate tech support company would ever contact you. Your computer does not report to Microsoft or any other company so if any tech support person contacts you can trust it is a scam and just hang up.
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