Why I am notified that my Windows is infected with viruses?

Question

Dear all,

I upgraded from Win10 to Win11. Then, it shows a set of boxes showing that my computer is infected with viruses. I have previously asked and solved this problem, but now the boxes show again when I open my browser Chome. Could anybody show me how to suppress them?

Answer 1

See:

Is My Computer Infected with Viruses?

Answer 2

your computer infected with a virus that fake itself as McAfee.

Those warnings showed on your desktop are fake McAfee virus, which asking you to click it (please do not click it!)

How to clean:

1. Open task manager - Processes.
   • end task all McAfee or anything that you are sure it's not installed by you
2. Go to Settings - System - Notifications.
   • Switch OFF all notifications
   • Uncheck all settings under Additional settings
3. Go to Settings - System - Privacy & security - General.
   • Switch OFF all options
4. Go to Programs and Features.
   • Uninstall McAfee or anything that you are sure it's not installed by you
5. Open Task Manager - Startup Apps
   • Disable McAfee or anything that you are sure it's not installed by you
6. Open Services.msc
   • Disable all McAfee services
7. Open Folder Options
   • uncheck Show sync provider notifications
8. Open browser (Chrome, Edge, etc)
   • open extensions, remove McAfee extension or anything that you are sure it's not installed by you
9. Browser settings - privacy and security - Site Settings - notifications
   • select Don't allow sites to send notifications
   • under Not allowed to send nofitications, remove all the address listed
10. Browser settings - privacy and security - Third party cookies - See all sites data and permissions
    • Clear all
11. Browser settings - privacy and security - Clear browsing data
    • Clear all data
12. Browser settings - reset settings
13. do for all browser.
14. restart computer.