Has anyone been able to get this to work?
You may need to use a fslogix or a writeable volumes to get it to work, from what I've seen things like that just don't roam right.
That's a Windows Store app right? You might have to set it up with Windows Store for Business, so that the users can use their domain accounts in the MS Store. I use this with the Sticky Notes app, and it saves the user's settings.
Try to add the subkey (from Alarms&Clocks) from the registry key below to a custom config file. I managed to roam the Windows calculator size using this key.
We have Sticky Notes and Calculator roaming just fine, but not Alarms & Clock. I was hoping someone else had it working.
I even tried this in a test config file and it still won't work after a new login: