Another point you should have mentioned is that updates to Apps installed through the APP STORE have to be applied separately, through the app store. When you enter the App store, look in the upper right corner for the very discrete little “x updates”. And as it was already pointed out, you should plan on checking for App updates frequently. MS is making lots of updates (adding features, making fixes) to it’s apps and so are the other app builders.

Personally, I wish that running a Windows update of the OS would trigger an App scan and list the updates as part of Windows update (even if it requires the App store to actually apply them). Come on MS, pull updates together and present them in one place.