Office 365 App keeps asking for your password [WORKAROUND]
You can't sign in after you update to Office 2016 build 16.0.7967 or later on Windows 10 Content provided by Microsoft https://support.microsoft.com/en-my/help/4025962/can-t-sign-in-after-update-to-office-2016-build-16-0-7967-on-windows-1 Two more Fixes: Fix 1: Revert to an older Verion of Office 365 Pro Plus C:\Progr~1\Common Files\Microsoft Shared\officeClickToRun /update user updatetoversion=16.0.8326.2107 1>officec2rclient.exe Fix 2: remove all Outlook account and start re-adding after Client reboot. Applies to: Office 365 ProPlus Select Product Version Overview This article contains information about a new authentication framework for Microsoft Office 2016. By default, Microsoft Office 365 ProPlus (2016 version) uses Azure Active Directory Authentication Library (ADAL) framework-based authentication. Starting in build 16.0.7967, Office uses Web Account Manager (WAM) for sign-in workflows on Windows