I want to replace Cortana with a cat woman. (Just kidding)
Seriously though, one dinky little Windows update change I'd like to see is the option to automatically apply updates which don't require a reboot, such as Windows Defender, while not automatically installing updates which require a reboot. That would cut down on notifications that I need to apply updates to my servers while also avoiding potentially ill-timed server reboots. Maybe apply updates on a weekly schedule so reboots don't interfere with backups, international access, etc.