The SafeGuard Enterprise (SGN) Credential Provider will not start following the installation of SafeGuard Lan Crypt (SG LC) Client 3.90.
First seen in
Sophos SafeGuard Disk Encryption 5.60.1
Sophos Disk Encryption 5.61.0
SafeGuard LAN Crypt Client for PC 3.90.0
Windows XP, Windows Vista, Windows 7
There is an incompatibility between the filter driver used for the SGN Client and the SG LC Client.
What To Do
The SGLC/ SGN compatibility patch is available to download from Sophos.com.
If an older version of SGN (i.e. <= 5.50.x) is installed then you will need to upgrade the SGN Client to at least version 5.60.x prior to installing the patch.