Hi Derek5E93,
We are sorry to hear you're unable to install XD on your Windows 11 machine. We would like to know if you're trying to install XD from the Creative Cloud Desktop app.
Error code 405 indicates that your app could not be installed as it is not available natively for ARM devices.
Check the system requirements of your app and try installing it again on a compatible device. Learn which Adobe apps are currently supported on Windows on ARM and Apple silicon.
Let us know if you need further assistance. We'd be happy to help.
Thanks,
Harshika