In Windows 7, preserving users' desktop icon size and arrangement was as easy as this:
[IncludeRegistryTrees]
HKCU\SOFTWARE\Microsoft\Windows\Shell\Bags\1\Desktop
In Windows 10, the same does not work. In my testing, I'm finding that when users' change the icon size on their desktop by either using the CTRL+wheel or just "right-click desktop --> View --> Large/medium/small Icon Size", the HKCU\SOFTWARE\Microsoft\Windows\Shell\Bags\1\Desktop\IconSize REG_DWORD registry key value does not change to reflect this. The only way I'm finding to get this registry key to update to match the desired configuration is to click on the desktop and hit "F5" on the keyboard. After that, the registry key value changes to match the newly set size.
If I exit explorer.exe or logoff the computer, the registry key does not update. It appears to be necessary to "refresh" the desktop get the registry key to update the value for IconSize. If I don't do this, restarting explorer.exe or loggong off/on does not save the icon size because the registry key is not updated.
So basically, the change in icon size appears to stay in the memory of explorer.exe unless the desktop is 'refreshed' at whcih point the icon size change happens in the right registry key.
Does anyone know a better way to "trigger" this refresh before the user logs off so that the registry keys update as needed?