So I'm frustrated,

Really guys we are paying QuickBooks good money.  I've had access to windows 11 3 months before it's release.

I'm currently trying to figure out what to do with a client of mine. There accounting company move all their data files over to QuickBooks 2022.  My clients computers are all windows 11. I can't install QuickBooks 2022 on 11.  The accounting company will not support 2021 and we don't have a copy of the 2021 file before the conversion. I can't downgrade the computers to windows 10. The computers shipped with 11 no 10 license. I've called Microsoft and the vendor of the computers. We are told we can't downgrade.

I know exactly why your QuickBooks 2022 software won't install on windows 11. It's because during the install there is a runtime library that is outdated and a newer version is already bundled with windows 11.  You just have to skip that runtime. But there is no option with your installer.  

So how to I fix this please