When upgrading the SEPM from version 12.1 to version 12.1 RU1, the following error appears "Error 1920. Service W3SVC (W3SVC) failed to start."
Last Updated October 25, 2018
When upgrading the Symantec Endpoint Protection Manager (SEPM) from version 12.1.671.4971 (RTM) to version 12.1.1000.157 (RU1), the following error appears: "Error 1920. Service W3SVC (W3SVC) failed to start. Verify that you have sufficient privileges to start system services."