The issue is only with Acronis Bootable Media. As a workaround, convert the disk from Windows

This article applies to:

• Acronis Backup & Recovery 11

Symptoms

1. You boot an EFI system from Acronis Bootable Media;
2. Once booted, you start Acronis Disk Director Lite (Disk management) and convert a basic GPT disk to the dynamic one;
3. As a result of the operation the disk space becomes unallocated.

Cause

This is a known issue.

Solution

As a workaround, start the product in Windows and do the conversion.

More information

See also Acronis Backup & Recovery 11.