Use legacy Change Password authentication dialog boxes

By default, Outlook displays the Windows authentication dialog box when users are prompted to change their passwords. By enabling this setting, you can change this behavior so that older-style Outlook dialog boxes that include the Change Password button are displayed.

Supported on: At least Windows 7
Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\15.0\outlook\rpc
Value Namedisablecredui
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

outlk15.admx

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Administrative Templates (Users)