Microsoft Edge browser froze up with a pop up 'critical warning' and to call this number. Obvious scam. I used task manager to force Edge to close and ran a scan with my anti-virus for good measure. End of problem.
Do not call this number (877)-889-7616. It starts with a warning on Google Chrome saying Critical Error and requests you to call this number saying they are Microsoft. They will try and sell you a program for your computer to get rid of the problem. It is a scam.
This number was used by a fake company (from accent, I can tell that these people are in India). Be aware of them. They try to steal your money. It all starts with a RED WARNING "Google Chrome Critical Error:" with request to call them. They call them as Microsoft Support.