Tech support

Is the Microsoft tech support warning a scam?

Quick answer

Yes, in essentially all cases. Microsoft does not display pop-ups with phone numbers, does not call customers about viruses, and does not lock browsers with sirens or warnings. Every 'Microsoft tech support' phone number you see in a pop-up or hear in a call is a scam.

Red flags to look for

1
Pop-up appears with a phone number to call
2
Browser locks up with alarm sound and warning message
3
Caller claims to be Microsoft and warns of detected viruses
4
Asks you to install AnyDesk, TeamViewer, or other remote-access tools
5
Wants you to log into your bank to 'verify' or 'protect' funds

Real examples

Browser pop-up

CRITICAL SECURITY WARNING: Your computer has been infected with 5 viruses. Personal data is being stolen. Call Microsoft Support immediately: 1-888-555-0193. DO NOT TURN OFF YOUR COMPUTER.

Likely Scam

Microsoft never displays such pop-ups. The message is JavaScript on a malicious webpage. Calling the number connects to a scammer who will request remote access and walk you through 'fixing' the computer while draining your bank account.

Phone call

Hello, this is the Microsoft Windows Support Team. We've detected your IP address is sending error reports. Your computer is compromised. Can you please go to your computer so I can help you fix it?

Likely Scam

Microsoft does not monitor individual computers or call users about 'error reports.' This is the most-recognized phone scam globally.

What to do

Don't call any number in a pop-up.
Don't install remote-access software when prompted by an unsolicited caller.
Force-quit your browser (Cmd+Q on Mac, Alt+F4 on Windows). On mobile, close all tabs.
If the pop-up persists, restart the computer.
Report Microsoft impersonation at microsoft.com/reportascam.
If you already gave remote access: disconnect internet, run a virus scan, change all passwords from a different device, and contact your bank.

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Why scammers use this approach

Microsoft's brand recognition is universal. The pop-up scam works on anyone unfamiliar with how operating systems actually communicate. Once the scammer has remote access, they typically empty bank accounts in 30-60 minutes.

Frequently asked questions

Does Microsoft ever call customers?

Almost never — and only in response to a request you initiated through official channels. They never cold-call about viruses.

I let someone control my computer remotely. What now?

Immediately disconnect from internet, change all passwords from another device, contact your bank, and run a full virus scan. Consider taking the computer to a real local technician.