Hi Dave123, 

Thanks for reaching out! Windows 11 is not officially supported as per the system requirements (see KB 107221) of Sage 50 CA versions 2021 and 2022.0. This is because it was made available to the general public on October 5, 2021, after we already released the latest version of the software. We are aiming to have 2023.0 Windows 11 compatible, extensive testing will ensue before that is confirmed.

Hope this helps!

Warm Regards, 
Erzsi