Hi,
You’ve encountered a tech support scam. The pop-up and phone call were fake Microsoft never asks you to call a number to fix your PC. Their goal is usually to steal your money or personal data.
Here’s what you need to do immediately:
Stop all contact – Hang up and don’t call back.
Secure your PC – Disconnect from the internet, remove any remote access apps, and run a full antivirus scan.
Protect your banking – Contact your bank right away, change passwords, and enable two-factor authentication.
Report the scam – Report to Microsoft and local cybercrime authorities.
I hope this helps!