Backup of a Virtual Machine (VM) fails with the error "V-79-32772-8975 - Final Error 0x8004230f (2147754767)"


Backup of a Virtual Machine (VM) fails with the error "V-79-32772-8975 - Final Error 0x8004230f (2147754767)"

Error Message

V-79-32772-8975 - Final Error 0x8004230f (2147754767)
V-79-10000-11226 - VSS Snapshot error. The Microsoft VSS snapshot provider selected returned: "Unexpected provider error". Ensure that all provider services are enabled and can be started. Check the Windows Event Viewer for details.

Check the Application Log in Windows Event Viewer for any of the following errors:

Event ID 1000
Source: Application Error
Type: Error
Description:  Faulting application vssvc.exe, version 5.2.3790.3959, faulting module vssvc.exe, version 5.2.3790.3959, fault address 0x0004b44e.

Event ID: 8193
Source: VSS
Type: Error
Description:  Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance.  hr = 0x80040206.

Event ID: 17
Source: VSS
Type: Error
Description:  Volume Shadow Copy Service error: The EventSystem service is disabled or is attempting to start during Safe Mode.  The Volume Shadow Copy service cannot start while in safe mode. If not in safe mode, make sure that EventSystem service is enabled. CLSID:{4e14fba2-2e22-11d1-9964-00c04fbbb345} Name:CEventSystem [0x80040206]



NOTE: In a Hyper-V environment this error can be caused by an application causing high disk I/O on the VM. 

The errors above will appear in virtual machine backups when the VMware Tools are uninstalled and reinstalled on a guest, which in turn reinstalls the VMware Snapshot Provider.  When installing the Backup Exec Remote Agent on the guest,  the VMware Snapshot Provider is uninstalled (as both snapshot providers can not co-exist on a guest).  So when reinstalling and upgrading VMware Tools, be sure to de-select the "Volume Shadow Copy Service" under "VMware Device Drivers" during the VMware Tools installation/upgrade wizard to avoid these errors in the future. 



NOTE:  These steps should be done on the guest machine or VM the backup is failing on
Confirm no backups are running of the guest machine giving the error then check the vss providers that are running. 
  • Open a command prompt on the guest machine failing during backup
  • Type "vssadmin list providers" and press enter
  • If both the Backup Exec VSS Provider and Microsoft Software Shadow Copy Provider are listed, follow the solution below
  • Run the "post-thaw-script.bat" from the VSS Provider directory in the Backup Exec install directory of the guest machine.

          The default path is C:\Program Files\Symantec\Backup Exec\RAWS\VSS Provider
          Reboot the guest machine.



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