Installation of the SafeGuard Encryption Client stops with message
Error 5009 - "Dynamic disks or GPT disks are used on this machine. This hard disk configuration is not supported by SafeGuard Enterprise!"
although the partition is neither a dynamic or GPT disk.
Some vendors deliver new computers with a 100 MB EFI-Systempartition with a GUID partition table (GPT).
What To Do
Sophos SafeGuard Encryption can only be installed on MBR initialized systems.