This can happen if some of the service Dependencies are not running, see image below:
It also may be that the Desktop Authority Manager Service tried to start before the dependencies were up and running.
The Event Viewer Application log can be reviewed to see if there is something recorded regarding the Desktop Authority Manager service.
Set the Desktop Authority Manager startup type to "Automatic (Delayed Start)"
Note: the default two minute delay can be changed to a different interval by using the registry:
This delay can be adjusted for all services by adding the AutoStartDelay (String/REG_SZ) value in the registry:
HKLM\SYSTEM\CurrentControlSet\Control\AutoStartDelay
Keep in mind that this setting applies to all services configure as Automatic (Delayed start).
Note: Technical Support does not provide support for problems that arise from improper modification of the registry. The Windows registry contains information critical to your computer and applications. Make sure you back up the registry before modifying it. For more information on the Windows Registry Editor and how to back up and restore it, refer to Microsoft Article ID 256986 “Windows registry information for advanced users” at Microsoft Support.
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