In situations where you are troubleshooting slow boot, shutdown, logon, and/or logoff behavior, enabling verbose messaging may be helpful.

You can use Group Policy (Computer Configuration\Administrative Templates\System) to toggle verbos versus normal status messages, or you can edit the registry, as long as the policy remains Not configured.

Use Regedt32 to navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

On the Edit menu, Add Value name VerboseStatus, as a REG_DWORD data type. A data value of 0, the default, causes the system to display normal status messages. A data value of 1 enables verbose status messages in each step of the process of starting, shutting down, logging on, and logging off.

NOTE: If HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableStatusMessages is set to 1, no status messages are displayed.