
If you're running Office 2013, make sure that both Outlook and MSO are updated to the Decemupdates, or a later update release, before you use this registry key. In the Value data box, type 1, and then click OK. Right-click AlwaysUseMSOAuthForAutoDiscover, and then click Modify. Type AlwaysUseMSOAuthForAutoDiscover, and then press Enter. On the Edit menu, point to New, and then click DWORD Value. In Registry Editor, locate and click the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Exchange Windows 7: Click Start, type regedit.exe in the search box, and then press Enter.


On the left side of the Registry Editor, under Computer, navigate to the following key in the registry: Select Yes when prompted to open the Registry Editor. Please respond to continue' (I am using the Authentication App but the same problem occurs if you are using SMS).

You enter the correct password then click 'Sign in', You are then displayed with 'We've sent a notification to your mobile device.

Right-click the Start button on the lower-left corner of your screen, and select Run. The sequence is that Outlook displays the modern authentication screen for you to enter your password. Then, you can restore the registry if a problem occurs.Ĭlose the activation window and all Office apps. For added protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully. However, serious problems might occur if you modify the registry incorrectly. Important: This task contains steps that tell you how to modify the registry.
