The version of Veeam Backup & Replication you are on likely does not support the Windows drive type.
In older versions of Veeam Backup & Replication, we were unable to perform File Level Recoveries on drives with the GPT type or marked as Dynamic with a spanned volumes.
If you are using the ReFS file system introduced with server 2012 to restore these volumes with the File Level Restore, Veeam will need to be installed on server 2012 as well.
Please make sure you are on version 220.127.116.11 and up of Veeam Backup & Replication.
Latest Version: www.Veeam.com/downloads
Latest Patch: http://www.veeam.com/kb1751
Please be aware that we’re making changes which will restrict access to product updates for users without an active contract.