Considerations and Limitations

Before you restore VM guest OS files, check the following considerations and limitations.

Licensing

Restore changes functionality is included in the Veeam Universal License. When using a legacy socket-based license, the Enterprise or Enterprise Plus editions of Veeam Backup & Replication are required.

Infrastructure Components

You can restore files from the file systems listed in section Supported Platforms and Applications.
The account that you use to start the Veeam Backup & Replication console and to connect to the backup server must have permissions and privileges described in section Veeam Backup & Replication Console Permissions.

You can restore files from basic disks and dynamic disks (including simple, mirrored, striped, spanned and RAID5 volumes).
[For restore to another VM, to original location, or permissions only] If the target VM uses the gMSA account and you restore files from a backup, you must also install this account on the mount server associated with the backup repository on which the backup resides. If you restore from a replica, you must install the gMSA account on the backup server.
[For restore to original location] VM guest OS must be accessible from the backup server over the network, or over PowerShell Direct (for VMs that reside on Microsoft Hyper-V Server 2016 or later).

Restore Scenarios

If you restore files from backups or replicas using Veeam Backup & Replication or Veeam Backup Enterprise Manager and create a mount point on the mount server, consider the following:

If the antivirus software installed on the mount server blocks or deletes from the mounted disk the objects you are trying to restore, Veeam Backup & Replication will not be able to access these objects. In this case, the restore session will be finished with the Failed state.
To avoid such issues, you can add the C:\VeeamFLR folder to the antivirus exclusions.

Source for Data Recovery

See limitations in the VMs section of Supported Platforms and Applications.

You can restore VM guest OS files from a backup that has at least one successfully created restore point.

You cannot restore files from a backup created in the reverse incremental mode if the backup job is being performed. If the backup is created in the incremental backup mode and the backup job is being performed, you can restore files from any available restore point.

You can restore guest OS files from disks that use either the GPT or MBR partitioning scheme. Restore from disks without a partitioning scheme is not supported.

You cannot restore pipes and other file system objects. Guest OS file restore supports recovery of files and folders only.

You cannot restore guest OS files encrypted with Windows EFS.
You cannot restore and browse guest OS files on disks encrypted by BitLocker.

Processing of reparse points is supported only for NTFS. Note that reparse points with reparse tag values other than IO_REPARSE_TAG_MOUNT_POINT, IO_REPARSE_TAG_SYMLINK and IO_REPARSE_TAG_DEDUP may be processed and restored incorrectly.
[For restore to original location] You cannot restore VM guest OS files if you have excluded the system disk from the VM backup used for restore and the volume GUID of the system disk was changed after the VM backup creation.

[For comparison functionality and restore of permissions only] Check that Hyper-V integration services are installed on the original machine and the machine is accessible over the network.
You cannot use the comparison functionality if the Group Managed Service Account (gMSA) account is used for the VM whose files you plan to restore.

The comparison functionality is not available for backups created by Veeam Backup for OLVM and RHV, for backups exported with Kasten policies and for backups stored in external repositories (for example, backups created by Veeam Backup for AWS, Veeam Backup for Microsoft Azure and so on).

[For permission restore] Permissions can be restored only for files and folders that are still present on the original VMs. If files and folders are missing, restore fails.

The comparison functionality uses Veeam Deployer Service. This service is a 32-bit service. During the comparison, the service converts some 64-bit objects in 32-bit objects. That is why such objects are shown as deleted in the Veeam Backup browser, for example, some objects in the Windows folder.
Target for Data Recovery
- [For restore to original location] Hyper-V integration services must be installed on the target VM. Application-aware processing must be supported for the Microsoft Windows OS of the original machine. If this is not possible, you can use 1-click file-level restore or copy files to the selected folder and then move them to their original location.
- [For restore to another VM] You can restore items only to Microsoft Windows-based VMs. You can select a VM only within the same virtual infrastructure where the original VM resides. For example, if the original VM resides in Hyper-V, you can select a VM that resides in Hyper-V only.
- [For permission restore] Veeam Backup & Replication restores only permissions. If you restore a folder, permissions are restored for all subfolders and nested files. Attributes such as Read-only, Encrypted and so on are not restored.
ReFS
- The machine on which a mount point is created (for example, the mount server) must run Microsoft Windows Server 2012 or later.
- The machine on which a mount point is created must support the same ReFS version or later than the version used on the VM from which you plan to restore files. For more information on which OSes support which ReFS, see ReFS versions and compatibility matrix.
To learn in which scenarios on which machines mount points are created, see Mount Points and Restore Scenarios.
Data Deduplication
If you plan to restore files from a VM running Microsoft Windows Server 2012 or later and data deduplication is enabled for some VM volumes, consider the following:
To learn in which scenarios on which machines mount points can be created, see Mount Points and Restore Scenarios.