Hi. I'm David, and I'm happy to help you.
This is a common browser lockup scam (Tech Support Scam). In most cases, the computer is not infected. The malicious webpage is simply running a full-screen script to prevent access and cause panic.
Here are the steps to regain control:
1 = Force-close the browser by doing this:
- Press "Ctrl + Shift + Esc" on the keyboard to open Task Manager.
- Find the browser in the list (Microsoft Edge, Google Chrome, Firefox, etc.).
- Right-click it and select "End task".
Note: If Task Manager is hidden behind the scam, exit full screen by doing this:
- Press "Alt + F4" to close the active window.
- Alternatively, hold down "Esc" or "F11" to break out of full-screen mode.
2 = After forcing the browser to close, reopen it safely:
- Open the browser again.
- If prompted to "Restore session" or "Restore tabs", select "No" or close the prompt. Restoring will reopen the scam page.
3 = Then, clear browser cache:
- Inside the browser, press "Ctrl + Shift + Del".
- Set the time range to "All time".
- Select "Cached images and files" only, then clear the data.
4 = Then, scan the system as a safety precaution:
- Open "Windows Security" from the Start menu.
- Go to "Virus & threat protection" and run a "Quick scan" to confirm the system is clean.
Feel free to ask any questions you may have.