Symptom - Checked Event Viewer

Event ID: 12052
Source: Windows Server Update Services
Description: The DSS Authentication Web Service is not working.
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Event ID: 12042
Source: Windows Server Update Services
Description: The SimpleAuth Web Service is not working.
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Event ID: 12022
Source: Windows Server Update Services
Description: The Client Web Service is not working.
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Event ID: 12032
Source: Windows Server Update Services
Description: The Server Synchronization Web Service is not working.
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Event ID: 12012
Source: Windows Server Update Services
Description: The API Remoting Web Service is not working.
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Event ID: 12002
Source: Windows Server Update Services
Description: The Reporting Web Service is not working.

Cause

Database that was installed on a drive was no longer available.

Resolution

<drive letter>:\WSUS\WsusContent  (Within IIS -> WSUS  Administration Website -> Content - Make sure path is valid)

Workaround

http://www.wsus.info/index.php?showtopic=10007