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Tech support scam: fake Microsoft or antivirus support

What to do if someone claims your computer has a virus and asks for remote access or payment.

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What is a tech support scam

A tech support scam is a type of fraud where criminals pretend to be from companies like Microsoft, Apple, or antivirus providers.

They try to convince you that your computer is infected or compromised and that you need urgent help.

Their goal is to:

  • get remote access to your device
  • steal personal data
  • charge you for fake services

How tech support scams work

The scam usually starts in one of these ways:

Fake pop-up warning

A message appears on your screen saying your computer is infected and you must call a number immediately.

Phone call

Someone calls claiming to be from “technical support” and warns about suspicious activity.

Fake website or ad

You are redirected to a page that looks official and displays urgent warnings.


What happens next

Once you engage:

  1. They ask you to install remote access software
  2. They gain control of your computer
  3. They may:
    • steal files
    • access passwords
    • install malware
  4. They demand payment for “fixing” the issue

Real examples

  • A pop-up saying “Your computer is infected — call Microsoft now”
  • A caller claiming your Windows license has expired
  • A fake antivirus alert blocking your screen

Warning signs

  • Unsolicited calls about your computer
  • Messages claiming immediate danger
  • Requests to install remote access tools
  • Requests for payment

Legitimate companies do NOT contact you this way.


What to do if you are targeted

1. Disconnect immediately

Close the browser or shut down your computer.

2. Do not call the number

It is controlled by scammers.

3. Remove remote access software

If installed, uninstall it immediately.

4. Scan your system

Use a trusted antivirus to check your device.

5. Change passwords

Especially if you shared credentials.


What to do if you already paid

  • Contact your bank or payment provider
  • Try to reverse the payment
  • Monitor your accounts
  • Report the fraud

How to avoid tech support scams

  • Ignore pop-ups claiming infections
  • Never allow remote access to strangers
  • Use official support channels only
  • Keep your system updated

FAQ

Does Microsoft call users about viruses?

No, Microsoft does not make unsolicited calls.

Are pop-up virus warnings real?

Usually not. Most are scams.


Final advice

If someone contacts you unexpectedly about your computer, assume it is a scam until proven otherwise.

Need country-specific help?

Open the help guide to see official agencies, emergency contacts and immediate steps available for your country.