Silent BitLocker Deployment via Intune for Remote Laptops

Yes. Microsoft Intune can silently enable BitLocker on remote Windows devices and automatically escrow recovery keys to the cloud, provided devices and policies meet specific requirements.

1. Silent BitLocker prerequisites

For silent BitLocker enablement, devices must meet these conditions:

• OS:
  • Admin users: Windows 10 version 1803 or later, or Windows 11
  • Standard users: Windows 10 version 1809 or later, or Windows 11
• Device configuration:
  • Microsoft Entra joined or Microsoft Entra hybrid joined
  • TPM 1.2 or later
  • Native UEFI BIOS mode
  • Secure Boot enabled
  • Windows Recovery Environment (WinRE) configured and available

Silent enablement automatically chooses the encryption type:

• Full disk encryption on non‑modern standby devices
• Used space only encryption on modern standby devices

This behavior can’t be customized for silent encryption scenarios.

2. Configure silent BitLocker via Endpoint security (recommended)

Use an Endpoint security > Disk encryption policy in Intune:

1. Create a BitLocker profile under Endpoint security.
2. In the BitLocker profile, configure:
   • Require Device Encryption = Enabled
   • Allow Warning For Other Disk Encryption = Disabled
   • After disabling warnings, set Allow Standard User Encryption = Enabled if devices are used by standard (non‑admin) users.

This combination enables BitLocker silently without user interaction.

Important: Disabling “Allow Warning For Other Disk Encryption” means BitLocker will proceed even if third‑party disk encryption is present. This can cause data loss, system instability, or complex recovery scenarios. Use device inventory to ensure no third‑party disk encryption is installed before deploying.

3. TPM startup settings for silent encryption

Silent BitLocker requires no user interaction at startup, so TPM PINs/keys must not be required.

In the same BitLocker profile under Operating System Drives:

1. Set Require additional authentication at startup = Enabled.
2. Then configure:
   • Configure TPM startup PIN = Do not allow startup PIN with TPM
   • Configure TPM startup key = Do not allow startup key with TPM
   • Configure TPM startup key and PIN = Do not allow startup key and PIN with TPM
   • Configure TPM startup = Allow TPM or Require TPM

Also review any security baselines (for example, Microsoft Defender baseline) to ensure they do not enable TPM startup PIN or key, as that would block silent enablement.

4. Alternative: Device configuration policy for silent BitLocker

If using a Device configuration > Endpoint protection policy instead of Endpoint security:

Under the Endpoint protection template (Windows Encryption):

1. Warning for other disk encryption = Block
2. Allow standard users to enable encryption during Microsoft Entra join = Allow
3. User creation of recovery key = Allow or Do not allow 256‑bit recovery key
4. User creation of recovery password = Allow or Require 48‑digit recovery password

And configure TPM startup options:

1. Compatible TPM startup = Allow TPM or Require TPM
2. Compatible TPM startup PIN = Do not allow startup PIN with TPM
3. Compatible TPM startup key = Do not allow startup key with TPM
4. Compatible TPM startup key and PIN = Do not allow startup key and PIN with TPM

5. Automatic backup of recovery keys to the cloud

Intune integrates with BitLocker so that recovery keys are automatically backed up and centrally visible:

• After Intune encrypts a Windows device with BitLocker, recovery keys can be viewed and managed via the Intune encryption report.
• This ensures keys are stored in the cloud and available to admins if users lose them.
• For additional security, configure Configure Recovery Password Rotation (via the BitLocker CSP) to automatically rotate recovery passwords after use.

6. Monitoring and rollout best practices

To safely roll out silent BitLocker for remote laptops:

1. Assess environment:
   • Identify existing disk encryption software using device inventory.
   • Plan to remove third‑party encryption before BitLocker deployment.
2. Pilot deployment:
   • Test silent BitLocker on a small, representative group of remote laptops.
3. Monitor encryption status:
   • Use the Intune encryption report to track which devices are encrypted and confirm recovery keys are present.
4. Prepare rollback/recovery procedures:
   • Ensure support processes exist for handling devices that encounter encryption conflicts or boot issues.

With these prerequisites and policies in place, Intune can silently enforce BitLocker on remote endpoints and automatically escrow recovery keys to the cloud, minimizing user involvement while protecting confidential data.

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References:

• Encrypt Windows devices with BitLocker using Intune

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