You are trying to install Symantec Endpoint Protection Cloud and the installation fails with a reference number.
· Framework::CVerifyTrust::IsFileTrusted(133) : File syminstall\defs\symcdefs.exe failed verify trust 4
The installation process includes downloading and running the latest Intelligent Updater in order to start the client with recent definitions. The Intelligent Updater is digitally signed by Symantec to ensure antivirus products do not consume definitions that have been tampered with.
This error occurs during the installation when the digital signature for the Intelligent Updater cannot be verified and can indicate a problem with the Certificate Authority or the Root Certificate on the machine.
Determine where the failure is occurring:
To resolve an error (red X):
To resolve a warning (exclamation point), check the certification for the correct purposes: