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# Workflows - Implementing Disk Encryption with BitLocker
## Workflow 1: Enterprise BitLocker Deployment
```
[Pre-deployment assessment]
├── Verify TPM 2.0 across fleet
├── Confirm UEFI/Secure Boot
├── Plan recovery key escrow (AD DS or Azure AD)
[Configure GPO/Intune policy]
├── Set encryption method (XTS-AES 256)
├── Configure key protectors (TPM + PIN for laptops, TPM for desktops)
├── Enable recovery key escrow
[Pilot deployment (test group)]
├── Verify encryption completes without errors
├── Test recovery key retrieval
├── Verify no boot issues
[Production rollout (phased)]
[Monitor encryption status via Intune/SCCM reports]
[Verify 100% coverage, address failures]
```
## Workflow 2: BitLocker Recovery Process
```
[User locked out (BitLocker recovery screen)]
[User provides Recovery Key ID to helpdesk]
[Helpdesk retrieves recovery key]
├── AD DS: RSAT BitLocker Recovery Password Viewer
├── Azure AD: Azure Portal → Devices → BitLocker keys
├── Intune: Intune Portal → Devices → Recovery keys
[User enters 48-digit recovery key]
[Investigate why recovery was triggered]
├── BIOS/firmware update ──► [Expected, no action]
├── TPM failure ──► [Replace TPM or re-encrypt]
├── Boot configuration change ──► [Review change, re-seal TPM]
└── Potential tampering ──► [Security investigation]
```
## Workflow 3: Key Rotation
```
[Quarterly key rotation policy]
[Generate new recovery password]
[Backup new key to AD/Azure AD]
[Remove old recovery password protector]
[Verify new key works in test recovery]
```