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Merge pull request #5329 from illfated/bitlocker_ad_ds_recovery_information

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BitLocker and AD DS: back up recovery information
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Daniel Simpson 2019-11-12 12:59:00 -08:00 committed by GitHub
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windows/security/information-protection/bitlocker/bitlocker-and-adds-faq.md
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@ -37,7 +37,15 @@ If BitLocker is enabled on a drive before Group Policy has been applied to enfor
For more info, see [BitLocker Group Policy settings](bitlocker-group-policy-settings.md).
The BitLocker Windows Management Instrumentation (WMI) interface does allow administrators to write a script to back up or synchronize an online client's existing recovery information; however, BitLocker does not automatically manage this process. The manage-bde command-line tool can also be used to manually back up recovery information to AD DS. For example, to back up all of the recovery information for the C: drive to AD DS, you would use the following command from an elevated command prompt: **manage-bde -protectors -adbackup C:**.
The BitLocker Windows Management Instrumentation (WMI) interface does allow administrators to write a script to back up or synchronize an online client's existing recovery information; however, BitLocker does not automatically manage this process. The manage-bde command-line tool can also be used to manually back up recovery information to AD DS. For example, to back up all of the recovery information for the `$env:SystemDrive` to AD DS, you would use the following command script from an elevated command prompt:
```PowerShell
$BitLocker = Get-BitLockerVolume -MountPoint $env:SystemDrive
$RecoveryProtector = $BitLocker.KeyProtector | Where-Object { $_.KeyProtectorType -eq 'RecoveryPassword' }
Backup-BitLockerKeyProtector -MountPoint $env:SystemDrive -KeyProtectorId $RecoveryProtector.KeyProtectorID
BackupToAAD-BitLockerKeyProtector -MountPoint $env:SystemDrive -KeyProtectorId $RecoveryProtector.KeyProtectorID
```
> [!IMPORTANT]
> Joining a computer to the domain should be the first step for new computers within an organization. After computers are joined to a domain, storing the BitLocker recovery key to AD DS is automatic (when enabled in Group Policy).