Well then, do you know how to do this on Windows 11?
In this post,MiniTool Softwarewill show you a full guide.
More importantly, it supports auto HDR.

What Is HDR on Windows 11?
The full name of HDR is High-Dynamic-Range.
It can reproduce a greater range of lighting levels in gaming.

In the following part, we will show you how to turn on Windows 11 auto HDR.
It is very easy to turn on HDR on a Windows 11 PC.
Here is a guide:
How to Download and Install Windows 11 on Your gadget?
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How to backup Windows 11 to an external hard drive or USB flash drive?
See this post that focuses on Windows 11 backup for files and system.