After upgrading Windows 11, the screen of a PC or laptop monitor may start flickering or blinking unexpectedly due to a frozen dwm.exe process, graphics card drivers, third-party software, viruses, hardware malfunction, or loose graphics card wires.
What is flicker problem?
. A flicker is the appearance of flashing or unsteadiness in an image on a display screen. This issue can occur when the video refresh rate is too low, other video-related issues, and in some cases hardware issues with the monitor. Commonly, when this issue occurs, users will experience more eyestrain.
Windows 11 Auto Refresh and Flicker Problem Fix [2021]
https://www.youtube.com/watch?v=S39xjDbBWH0
For more Help
http://windows.microsoft.com/en-in/windows-10/troubleshoot-screen-flickering
http://windows.microsoft.com/en-in/windows-10/troubleshoot-screen-flickering
if it will not help please contact https://support.microsoft.com/