Click Forgotten Password on the Windows logon page.
The Credential Provider checks the availability of the SSPR server. If the SSPR server is reachable, a Restricted Browser window is launched. If the SSPR server is not reachable, the challenge-response dialog is displayed.
If the challenge questions are answered, the user can log in using Emergency Access feature for a specified time.
After expiry of the specified duration, the user is logged out automatically.