ok if that machine has sep client as well, please uninstall the SEP client and the symantec live update client as well. then follow the below steps
- Click Start > Run
- Enter the following command including the quotes: "C:\Program Files (x86)\Symantec\Symantec Endpoint Protection Manager\bin\LuCatalog.exe" -cleanup
- This command will unregister all Symantec Endpoint Protection Manager content from LiveUpdate. We will then proceed to re-register the content again with LiveUpdate
- Note: If the SEPM is installed to a custom location, adjust the path in the command to the location of the LuCatalog.exe executable.
- Click Start > Run
- Enter the following command including the quotes: "C:\Program Files\Symantec\Symantec Endpoint Protection Manager\bin\LuCatalog.exe" -update
now run the live update