How to Fix the Fake Windows Support Scam (PC Blocked Pop-up)
Question details
The user is encountering a persistent pop-up message on their screen claiming that their computer is blocked and instructing them to call a provided Microsoft support number.

- Product
- Windows
- Device & OS
- Windows
- Scenario
- While browsing the internet or using the computer, a sudden security alert takes over the screen, preventing normal operation and urging immediate contact with tech support.
- Observed behavior
- A fake tech support pop-up locks the browser or screen, falsely stating the PC is blocked due to a virus or security breach, and provides a fraudulent phone number to call.
Do not click any links on the pop-up, do not provide any payment or password information, and never call the phone number displayed. Genuine Microsoft error messages do not include phone numbers.
Force Restart Your Computer
Use this method to quickly escape the locked screen if the scam pop-up is preventing you from clicking anywhere else.
Tech support scam pop-ups often use full-screen modes or endless dialogue loops to make it seem like your entire system is locked. A hard restart will bypass this browser lock and restore normal access.
Press Ctrl + Alt + Delete on your keyboard. If the security menu appears, click the Power icon in the bottom right corner and select Restart.
If the keyboard shortcut does not work, press and hold the physical power button on your computer for about seven seconds until the machine turns off completely.
Wait a few seconds, then press the power button again to turn your computer back on. Do not restore the previous browser session when you open your web browser.

Close the Browser Using Task Manager
If the scam is contained within your web browser, forcing the application to close will remove the fake alert without needing to restart your PC.
Run a Windows Defender Antivirus Scan
Ensure your system is clean by running a full scan after encountering a malicious pop-up.
Work Securely with WPS Office
After securing your Windows PC from tech support scams, upgrade your daily productivity with WPS Office. It provides a secure, lightweight, and highly compatible suite for all your document needs without the heavy subscription fees.
- 1. Download the software: Visit the official WPS Office website and click the Free Download button to get the latest secure installation package.
- 2. Install on your PC: Run the downloaded executable file and follow the straightforward on-screen instructions to install the suite.
- 3. Open and edit files: Launch WPS Office to securely view, edit, and create your documents, spreadsheets, and presentations.

Frequently Asked Questions
How do I know if a Microsoft support warning is real?
Genuine Microsoft error messages and warnings never include a phone number. They also do not ask for personal information, payment, or remote access to your device. If a pop-up demands you call a number, it is a scam.
Can a fake support pop-up infect my computer with a virus?
Typically, the pop-up itself is just a malicious webpage displaying a script and is not a virus. However, if you click links within the pop-up, download attached files, or grant the scammers remote access, your computer can become infected with malware.
What should I do if I already called the scammer's number?
If you provided them with remote access, immediately disconnect your PC from the internet and run a full antivirus scan. If you provided credit card or bank details, contact your financial institution immediately to block the transaction and secure your accounts.
How can I prevent these fake pop-ups from appearing again?
Keep your web browser and operating system updated. Enable Windows Defender or use a reputable third-party antivirus, consider installing an ad-blocker extension, and avoid visiting suspicious websites or clicking on unknown links.




