Rapid Recovery protects at the block-level, leaving little concern for the content of the data it protects. However, using OS level encryption can prevent file-level restore from working. This is due to the fact that the encryption engine must be running to decrypt the information. When backing up using Rapid Recovery Agent software, the information is already decrypted when the snapshot is taken. Therefore, file-level restore is possible when the recovery point is mounted.
Agentless protection is carried out by the virtual environment hypervisors or hosts. The virtual machine could be turned off when the snapshot of the virtual disk is backed up. Consequently, there is no way to decrypt the file during the file-level restore execution. This does not affect full system restoration (BMR/Export/Virtual Standby) since all the required elements are present (encryption engine, encrypted data, and the cipher key). It is important to include the System Reserve Partition, as it holds key for Microsoft’s BitLocker Drive/s encryption/decryption.