Close all Microsoft Office applications (Outlook, Word, Excel, PowerPoint, etc.) 2. feature that allows ADAL-based sign in and multi-factor authentication). Select all the results, right-click (or two-finger click), and select Delete (all) items. On the left sidebar, under Keychains, select login.
Open Keychain Access by using one of the following methods:.Exit Outlook and all other Office applications.To work around this issue, delete any cached passwords for your account and any modern authentication tokens from the Keychain.