I can’t install anything on Windows 11 either and several of the extensions don’t work for me because of missing .dlls I think the extensions require 32 bit versions of the DLLs
The fix for Windows 11 was posted HERE
But there is an issue with downloading files it seems the path is wrong. I’m trying to check on that in THIS THREAD
I don’t know the solution for that other than open a Developer Support request. You can try the TV Seller support but I think the Developer Support for Tizen Studio is probably quicker.
Ron
Samsung Developer Relations