So I too did a hard reset. System file file is down ~50% to 3 GB and a i "think" there has been an improvement in battery life. But I still have my problem with Outlook Mail, I can't reliably delete emails. Sometimes I can mostly I can't and I haven't yet identified the sequence of events that occurs before I successfully delete. I had hoped the Outlook update would cure this. I hasn't.
So this morning I received Outlook Mail and Calendar v. 17.6769.40722 (up from .40622) and my bug in which I was unable to reliably delete emails, appears to have been cured. I am very happy.