I had been struggling with making the Microsoft OneDrive account work with my Microsoft Account, which happened to be a "Hotmail" account. I had used this old account after resetting the password. It works fine for 1) Hotmail and 2)Accessing the Microsoft Store. Unfortunately, the OneDrive blocks me and the other apps (Word, Excel, etc.) just don't work. I fixed the OneDrive app by using a different Outlook.com Microsoft Account and uninstalling the OneDrive app and the re-Install it and signing in (it saves it). **The bad news is that you have to reset your phone (which wipes out all your installed apps) to redo the Microsoft Account**. Not cool!