Policy
Force Start to be either full screen size or menu size
If you enable this policy and set it to Start menu or full screen Start, Start will be that size and users will be unable to change the size of Start in Settings. If you disable or don’t configure this policy setting, Windows will automatically select the size based on hardware form factor and users will be able to change the size of Start in Settings.
PackMicrosoft Windows
CategoryStart Menu and Taskbar
Policy ID
2bb73dc0aa84Internal name
ForceStartSizeRegistry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Windows\Explorer\ForceStartSizeHKCU\Software\Policies\Microsoft\Windows\Explorer\ForceStartSizePolicy notes
If you enable this policy and set it to Start menu or full screen Start, Start will be that size and users will be unable to change the size of Start in Settings. If you disable or don’t configure this policy setting, Windows will automatically select the size based on hardware form factor and users will be able to change the size of Start in Settings.