I am trying to edit shared OneDrive Excel and Word files on my PC using Office 2013. When the programs are launched, I see the screen below. I enter the username and password to my laptop 3 times and the file is opened in protected view. I click Enable Editing and again have to enter my credentials 3 times. I try to save the file and again have to enter my credentials 3 times. Sometimes the file will only open in a read only mode.
This state of affairs makes it impractical to edit the documents involved. Any ideas please? I've tried combing questions around the topic of d.docs.live.net, but haven't yet seen a clear explanation of what is wrong and how to rectify the situation.