Unsupported PCs will be unable to test Windows 11 Insider builds.
If you are one of them, what should you do then?
In this post,MiniTool Softwarewill show you some related information you may be interested in.

What Does This Warning Mean?
Microsoft has updated the requirements for Windows 11 preview builds.
That is, ineligible Windows 11 PCs in the Dev Channel will be kicked out of Windows Insider Program.
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you gotta go back to Windows 10 on your rig.
In this way, it’s possible for you to test the Windows 10 21H2 Insider preview builds.
While the company may change it anytime.

If you still want to get updates, its time to roll back to Windows 10.
Whats the Result?
What Should You Do if You Run Windows 11 on an Unsupported PC?

As you know the Windows Insider preview builds are some test builds that have many issues and bugs.
Insiders can test them and report bugs & issues they found to Microsoft to help improve Windows 11.
So, the wise choice is to roll back to Windows 10.

ClickSearchand search forcreate a restore point.
snag the first result to openSystem properties.
If your needed system restore point is selected by default, you could clickNextto continue.

The system restore process begins.
You should wait until it ends.
After that, your system goes back to Windows 10.
This method is not as difficult as imagined.
At present, Windows 10 21H1 is the latest Windows 10 version.
After that, you canclean install Windows 21H1on your box.