This article details how to enable silent enrollment for Symantec Encryption Desktop application (previously PGP Desktop).
Silent enrollment reduces the number of screens your users must navigate during enrollment with Symantec Encryption Management Server. Only essential Setup Assistant screens appear during enrollment. Silent enrollment suppresses non-essential screens and uses default settings. Silent Enrollment is supported on both Windows and Mac Operating Systems, but is not supported on Linux clients.
Silent enrollment requires the use of the LDAP Directory Synchronization feature.
To enable Silent enrollment
PGP Universal server 3.2.x
Symantec Encryption Management Server 3.3.x
Microsoft Windows Family Operation Systems