There are two very easy ways to install Windows 11 on unsupported hardware.
Both methods require a Windows 11 ISO, so download that first:
https://www.microsoft.com/en-us/software-download/windows11
The bottom option, select “Windows 11 (multi-edition ISO for x64 devices)”, then click the blue “Download Now” box below that. It may ask you to confirm your language.
The easiest way at that point is to simply double-click the ISO file. It will mount it as a virtual drive. Make note of the drive letter.
Right-click on your Start menu / Windows menu, click “Terminal (Admin)”
Switch to the drive letter of the mounted ISO. If it mounted it as the E: drive, then, at the prompt, type:
E:
That will switch it to E:
To begin install, type:
./setup.exe /product server
This will begin installation. Requirements will be bypassed. Ignore references to “Windows Server” during the initial setup phase, as it is indeed installing Windows 11.
And that should be it.
Alternatively, If you have a USB flash drive that is at least 8GB, then you can use rufus:
https://rufus.ie/en/
Choose which USB flash drive you want to use, if it’s not already selected.
Click on the box at the top where it says “SELECT” and select the ISO that you downloaded previously.
Click the START button at the bottom, which will bring up an additional dialog box allowing you to bypass various requirements. Then click OK.
Once it’s finished, launch Setup from the USB flash drive.