Use the following solutions to fix the Black and White squares issue on your Windows 11/10 computer screen. First, you need to apply some basic fixes and see if these can resolve the issue.

Misconfigured settings in your display control panel can make your computer screen go black and white when HDMI is plugged in. Reset these settings and see if the screen turns back to normal.

If you see odd behavior coming from your screen, reboot the computer to see if the issue resolves itself. Should the white spots and black background reappear, it could mean that your computer has ...