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Based on the error message shown, this behavior is expected when using Volume Recovery to restore a volume that contains operating system components:
"You cannot perform a volume recovery because all destination volumes contain operating system components..."
This occurs because Windows Server Backup detects that the destination volume contains the currently installed operating system and prevents the restore operation from overwriting active OS files. For operating system recovery scenarios, this is a recommendation using System State Recovery or Bare Metal Recovery (BMR) instead.
1. If you only need to restore Windows configuration components
Use System State Recovery:
wbadmin start systemstaterecovery
System State Recovery restores operating system configuration components such as the registry, boot files, Active Directory (if applicable), and other system state data.
2. If you need to restore the entire operating system
Use Bare Metal Recovery (BMR) from the Windows Recovery Environment (WinRE) or by booting from Windows Server 2025 installation media.
- Boot into WinRE or start from the Windows Server installation media.
- Select Repair your computer.
- Choose System Image Recovery.
- Restore the server using the available backup image.
Bare Metal Recovery is the recommended approach when recovering a failed operating system or restoring the entire server to a previous state.
3. Why the restore fails
The Recovery Wizard is currently attempting a Volume Recovery operation while all available destination volumes contain operating system components. Windows Server Backup does not allow an online restore that would overwrite the active system volume.
Instead, you should:
- Use Files and Folders Recovery if only data files need to be restored.
- Use System State Recovery for operating system configuration recovery.
- Use Bare Metal Recovery (BMR) from WinRE for a full operating system restore.
For additional information, please refer to the following Microsoft documentation:
Restore System State to a Windows Server - Azure Backup | Microsoft Learn
Add-WBBareMetalRecovery (WindowsServerBackup) | Microsoft Learn
System state and bare-metal recovery protection for Azure Backup - Azure Backup | Microsoft Learn
Back up system state and bare metal | Microsoft Learn
Windows Server Backup Feature Overview | Microsoft Learn
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