Windows 10 20H1 supposedly requires a 6th-gen Core processor. I currently have an i7 2600K running 20H1 very smoothly thankyouverymuch. Last night Windows Update prompted me to install (the also incompatible) 21H2 on it.
We also have an old Lenovo laptop running 20H1 quite well on a 4th-gen Core i5. Both boxen have SSDs and 8GB RAM. Neither has secure boot enabled.
This might be a deal like Windows 10, where TPM and other hardware are required in order to enable specific features in Windows 11, but not to run the OS itself. Just my own speculation.
Biting the hand that feeds IT
