At the moment no workaround is possible, even though we know some machines work perfectly fine.
I know this is annoying even for a 500$ PC (like the 2720) -- my current workstation configuration is worth close to 7,000-8,000$ so I also will be looking for a solution...
A follow up here -- apparently, for now microsoft is purposely let people install Win11 on computers that don't meet the minimum requirement -- but this is only for the purpose of installing preview builds.
Once Win11 releases on October 5, any PC not meeting all requirements (including the CPU...
I successfully installed Win11 no problem on my T7810 Xeon E5 workstation.
My daily workhorse is a T7810, dual Xeon E5-2997 v3 (2x 14 cores, 56 threads) with 64GB ECC ram and RTX 2070. It was on an old bios A13, and I saw it had TPM 1.2 (disabled), SecureBoot (disabled), and using legacy bios...