AGENT TO HELP WITH

Remove the unfamiliar website’s Chrome permissions, block pop-ups and redirects, and delete any extension you do not recognize.

Clean up Chrome

1. In Chrome, select ⋮ (three dots) → Settings → Privacy and security → Site settings.
2. Open Notifications.
3. Under sites allowed to send notifications, find unfamiliar websites and choose ⋮ → Remove or Block.
4. Return to Site settings → Pop-ups and redirects.
5. Select Don’t allow sites to send pop-ups or use redirects and remove any unfamiliar sites listed as allowed. ^1^
6. Open ⋮ → Extensions → Manage extensions and remove anything unfamiliar or no longer needed. ^2^
7. Close and reopen Chrome.

Do not click the pop-up, download anything from it, call a displayed telephone number, or enter account or payment details. If it prevents Chrome from closing, press Ctrl+Shift+Esc, select Google Chrome in Task Manager, and choose End task. ^3^

If it continues

Reset Chrome through ⋮ → Settings → Reset settings → Restore settings to their original defaults → Reset settings. This restores settings such as the startup page and search engine; it is not a complete deletion of the Chrome profile. ^4^

If the unwanted website still returns after that:

1. Open Windows Security from the Start menu.
2. Select Virus & threat protection → Scan options → Full scan → Scan now.
3. Remove or quarantine anything detected.

Persistent, unexpected pop-ups can indicate malware, although browser permissions, extensions, or other software can produce the same symptom. ^5^

If malware is repeatedly detected after restarting, save your work and run Windows Security → Virus & threat protection → Scan options → Microsoft Defender Offline scan → Scan now. The computer will restart for this scan. ^6^

References

1. Block or allow pop-ups in Chrome - Google Help
2. Install and manage extensions - Google Chrome Help
3. How to i get rid of a window scam screen that keeps popping up? - Microsoft Q&A
4. Reset Chrome settings to default - Google Help
5. Microsoft resources and guidance for removal of malware and viruses | Microsoft Support
6. Troubleshoot problems with detecting and removing malware | Microsoft Support