The original decision by Microsoft to require a version 2.0 TPM and a processor newer than a 6th gen Intel (apologies, I do not know the AMD equivalent of the top of my head!) understandably irritated a lot of people.
Thankfully a little sense has prevailed and although Microsoft do not “recommend” this, they at least now offer a workaround to install Windows 11 if you don’t meet the original TPM/CPU requirements (note that you still need version 1.2 TPM so make sure this is a feature available and enabled in your BIOS).
The Windows 11 installer now provides an option to accept the risks and proceed –
You can also set the below registry key to enable installation if not using the standalone installer –
HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup AllowUpgradesWithUnsupportedTPMOrCPU 1
Setting AllowUpgradesWithUnsupportedTPMOrCPU to 1 should allow installation via the Windows Insider method if this is preferred.