Windows 10 product usually works with Windows 11, but the problems occur if your Windows 10 license is an OEM license (tied to original device hardware and not transferable) rather than a Retail ...
So I upgraded an old haswell system by replacing the Motherboard, CPU, & Ram. This PC is a gaming PC which I bought a Window 7 Ultimate retail lic for, then rolled into Win10 "free" upgrade. When I ...