
Unlocking the Storage Volume 10
Unlocking the Storage Volume
After the OS recovery is complete, you will need to unlock the storage volume that has been encrypted with
BitLocker.
1. Plug the USBrecovery device into the recorder.
The BitLocker recovery key files (BEK files) should have been backed up to your USB device
as part of completing the NVR setup. For more information, see Hardening the Avigilon NVR5
Premium - FIPS Series.
2. Open Windows Explorer and locate the storage volume with the locked icon.
3. Click the storage volume. Windows will ask you for a Recovery Key. Click to Load Key From USB Drive. The
storage volume should now be unlocked.
4. Click on the Windows Start button and type Manage BitLocker. Open the Manage BitLocker application.
5. Click on Storage and select Turn on auto-unlock.
Re-installing the ACC Software
Download and install your version of the ACC software on the NVR. After installing, the system will start configuring
system storage and hardening of the recorder.
Replacing the Motherboard
Your recorder uses a Trusted Platform Module (TPM) to secure your hardware with integrated cryptographic keys. To
maintain security, the TPM cannot be reused with a new motherboard if the motherboard needs to be replaced. If the
motherboard needs to be replaced, this will require a new TPM.
You will be required to enter your BitLocker recovery key when booting to the Operating system after replacing the
motherboard. As part of the initial setup, administrators should backup their BitLocker recovery key. This key can
then be used to restore BitLocker on a new TPM if the motherboard is replaced.
Make sure you have the BitLocker recovery key prior to replacing the motherboard. It is also advised
that you decrypt the hard drive prior to replacing the motherboard.
1. After replacing the motherboard and signing in with the BitLocker recovery key, navigate to Control Panel >
System and Security > BitLocker Drive Encryption.
2. Choose to Suspend protection from the Manage BitLocker window. A message should appear stating that
BitLocker protection has been suspended.
3. Reboot the system and go into the BIOS to enable and activate the TPM.
4. Click Apply and Exit.
5. Boot back into Windows and ensure that BitLocker is turned back on in the BitLocker manager console.