There are no limitations on backing up and recovering data that is encrypted by file-level
encryption software encrypts data on the fly. This is why data contained in the backup is not encrypted. Disk-level encryption software often modifies system areas: boot records, or partition tables, or file system tables. These factors affect disk-level backup and recovery, the ability of the recovered system to boot and access to Secure Zone.
You can back up the data encrypted by the following disk-level encryption software:
- Microsoft BitLocker Drive Encryption
- McAfee Endpoint Encryption
- PGP Whole Disk Encryption.
To ensure reliable disk-level recovery, follow the common rules and software-specific recommendations.
Common installation rule
The strong recommendation is to install the encryption software before installing the protection agents.
The way of using Secure Zone
Secure Zone must not be encrypted with disk-level encryption. This is the only way to use Secure Zone:
- Install the encryption software; then, install the agent.
- Create Secure Zone.
- Exclude Secure Zone when encrypting the disk or its volumes.
Common backup rule
You can do a disk-level backup in the operating system.
Software-specific recovery procedures
Microsoft BitLocker Drive Encryption
To recover a system that was encrypted by BitLocker:
- Boot from the bootable media.
- Recover the system. The recovered data will be unencrypted.
- Reboot the recovered system.
- Turn on BitLocker.
If you only need to recover one partition of a multi-partitioned disk, do so under the operating system. Recovery under bootable media may make the recovered partition undetectable for Windows.
McAfee Endpoint Encryption and PGP Whole Disk Encryption
You can recover an encrypted system partition by using bootable media only.
If the recovered system fails to boot, rebuild Master Boot Record as described in the following Microsoft knowledge base article: https://support.microsoft.com/kb/2622803