When trying to encrypt a disk with Symantec Drive Encryption (formerly known as PGP Whole Disk Encryption), the fails and the following error appears:

This Disk Does not appear to have a valid volume.

PGP Whole Disk can only encrypt disks with at least one valid volume.

• Symantec Drive Encryption 10.3.0 and previous did not support computers using UEFI firmware.
• Symantec Drive Encryption 10.3.1 includes UEFI support for Windows 8, but not Windows 7.
• Symantec Encryption Desktop 10.3.2 has support for UEFI for Windows 7 64-bit and Windows 8.0/8.1.
• Symantec Drive Encryption 10.3.2 and above now supports GUID Partition Table (GPT) formatting on Microsoft Windows 7 64-bit systems and Windows 8.0/8.1 64-bit systems, running in UEFI mode. Systems using UEFI should upgrade to Symantec Drive Encryption 10.3.2 or above to obtain this full support for this new functionality.

Refer to article TECH203071 for more details and requirements on UEFI support and Symantec Drive Encryption.

Applies To

HP Elite Book 8560W

Windows 7 64-bit