Account Security Problems

How to Fix Microsoft Virus Alert Says Your Computer Is Locked

Partner Editor Oct 1, 2026 868 views

Question details

The user receives a fake full-screen warning claiming their computer is locked due to a virus and urging them to call technical support.

How to Remove the Microsoft Virus Alert 'Computer Is Locked' Scam

Product: Windows / Web Browser
Device & OS: not provided
Scenario: Browsing the internet when a sudden, unclosable pop-up appears displaying a fake virus warning and a phone number.
Observed behavior: The screen is taken over by a deceptive alert claiming the computer is locked, often accompanied by audio warnings or continuous pop-ups designed to panic the user.

Before you start

Do not panic, and absolutely do not call the phone number provided on the screen or click any links within the pop-up window.

Solution 1Recommended

Force Close the Browser and Disconnect from the Internet

The quickest and safest way to bypass the fake lock screen is to kill the browser process completely without clicking anything on the page.

This fake alert is usually just a web page running in full-screen mode. Closing the browser through the Task Manager will safely remove the message without risking your system.

Disconnect from the internet

Turn off your Wi-Fi or unplug your Ethernet cable to prevent any potential remote access or further malicious downloads.

Open the Task Manager

Press Ctrl + Shift + Esc on your keyboard simultaneously to open the Windows Task Manager.

End the browser task

Locate your web browser (e.g., Google Chrome, Microsoft Edge, or Firefox) in the list of active processes, right-click it, and select 'End task'.

Restart your computer

Restart your PC normally to ensure any lingering temporary scripts from the malicious website are cleared.

Do Not Restore Tabs: When you reopen your web browser later, do not click 'Restore previous session', as it will reload the malicious scam page.

Solution 2

Run an Offline Antivirus Scan

Ensure no actual adware or malware has been installed on your system that might continue to trigger these pop-ups.

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Frequently Asked Questions

Why did I get a Microsoft virus alert pop-up?

These alerts are typically caused by visiting compromised websites, clicking on malicious advertisements, or having hidden adware installed on your browser. They are deceptive web pages, not real system alerts.

What happens if I call the number on the locked screen?

Scammers will answer the call and attempt to convince you to give them remote access to your computer. Once inside, they may install real malware, charge you exorbitant fees for fake support services, or steal your personal and financial information.

How can I prevent fake tech support pop-ups in the future?

Keep your web browser and operating system updated to the latest versions, use a reliable ad blocker, avoid downloading pirated software from untrusted sources, and regularly run malware scans.

Microsoft Office Security Issues