Microsoft family settings might be hiding apps. Parents can use family settings to make sure that their child can't view or install apps that are inappropriate for their age.

When you open a file and make your first changes, AutoSave saves those changes and a new version of the file is added to the version history. After that even though AutoSave is regularly saving your changes to the file, new versions are only added to the version history periodically (about every 10 minutes) for the remainder of your editing session.