The Windows Security Center (WSC) does not report the Symantec Endpoint Protection (SEP) client running state correctly.
WSC reports the SEP client had closed or the virus definitions are out of date.
Open the SEP client GUI to confirm it is running state and to confirm the virus definitions date.
The database of Windows Management Instrumentation (WMI) service is corrupt
1, Go to services in Admin tools, stop the Windows Management Instrumentation (WMI) service. 2, Go to C:\windows\system32\wbem directory and delete the Repository directory.
3. Start the Windows Management Instrumentation (WMI) service。 4. Reboot computer，Go to the Repository directory from step 2 and check if it had recreated files. If yes, check the Windows Security Center and see if the issue is resolved.
Symantec Endpoint Protection 11.x and 12.1.x
Imported Document ID: TECH172514
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