Using HTTPS to download components from the Trend Micro ActiveUpdate server (the default download source) or other update source provides a more secure method for retrieving components.
Downloading components from a shared folder in a network requires setting the local Windows and Remote UNC authentications.
The local Windows authentication refers to the Active Directory user account in the Control Manager server. The account should have:
Log on as a batch job policy set
The remote UNC authentication feature uses a user account from the component source server that has permission to share a folder to which Control Manager will download updates.