Hyper-V and VMware GRT (Granular Recovery Technology) backup of an Active Directory VM (Virtual Machine) completes with the following exception and subsequent GRT Restores are also not possible.
“V-79-57344-38747 - Backup Exec was unable to prepare Microsoft Active Directory resources for Granular Recovery Technology (GRT) operations. Therefore you will be unable to perform GRT-enabled restores of Microsoft Active Directory data from this backup”.
Backup Exec Debug Log
BEREMOTE:  - Closing Vlink VFF id (4996-00001384) with: Total Bytes Read=00000000:00001000, Written=00000000:00000000
BEREMOTE:  - Closing Session [ThreadId=4996, Major=0, Minor=0, Index=0, Last=00000000].
BEREMOTE:  - SessionStatus for [4200-00001068] - Major=0, Minor=0, Index=0, LastError=0, Session is not Active.
BEREMOTE:  [fsys\adgran] - DSProv:Error status:12 (-4001/-4001 A read was issued to a location beyond the EOF (writes will expand the file). ) opening [N:\BEData\IMG000071\IMG000001\ntds.dit] at B:229
BEREMOTE:  [fsys\adgran] - DSProv:Failed to create the instance for [N:\BEData\IMG000071\IMG000001\ntds.dit] at P:93
BEREMOTE:  [fsys\adgran] - ADGran: Status SUCCESS (0x00000000) no provider enumerator in getADGInstanceName:702. Attach reason = 0x0002, Provider status = 0x000C
A hotfix is now available for this issue in the current version(s) of the product(s) mentioned in this article. Refer to the Hotfix link under Related Documents at the end of this article to obtain the hotfix needed to resolve the issue.
Backup Exec 2014 Rev 1786 Hotfix (TECH225092).