I recently started a discussion about difficulty installing SAS 9.4 on a Windows 11 platform. There were a couple comments but none with a solution (even though one was accepted as a solution by accident, somehow).
After communicating with SAS technical support directly, it was discovered that Windows 11 requires SAS 9.4 to be at least version M7, and the latest version is actually M8. The version I was trying to install was an old M4 version and that is apparently why the install failed.
Moral of the story, if you are using Windows 11, use the proper version of 9.4.