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.
| Registry Hive | HKEY_CURRENT_USER |
| Registry Path | software\policies\microsoft\office\15.0\outlook\rpc |
| Value Name | disablecredui |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |