It's possible to upgrade your 'incompatible' PC to Windows 11 in 10 simple steps. Here's how I did it in just a few minutes.
If your Windows 10 product key is not working on Windows 11, check the Windows Edition, your activation status, and then ...
If Windows Update says your desktop or laptop doesn't meet the requirements for Windows 11, a bit of work under the hood could make it happen anyway.
Windows 11 officially requires a Trusted Platform Module. Here's why and what to do if your old PC doesn't have one.