Forum Discussion

TornadoWire1's avatar
13 years ago

Hyper-V image restore failure


My Hyper-V agent image restores are failing with the following error:

Restore- VRTSRV::\\VMH-2.tornadowire.local\Hyper-V?Virtual?Machine\TESTSRVR-1 V-79-57344-65233 - Writer Name: Microsoft Hyper-V, Writer ID: {66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}, Last error: 0x800423f4, State: 0001.

V-79-57344-65233 - A failure occurred querying the Writer status.

There server however appears to have restored successfully and I can boot it up again without a problem. However the error does not inspire confidence that the restore is totally successful.

Any ideas what the problem might be?

Kind Regards


5 Replies

  • The servers affected are Windows Server 2008 R2, using Backup Exec 2010 R3.

    The VSS Admin list command shows no errors on both servers.

  • To add,


    The following event is logged in the event log:


    Volume Shadow Copy Service error: Unexpected error An older writer session state is being removed. .  hr = 0x80042409, Writer status is not available for one or more writers.  A writer may have reached the limit to the number of available backup-restore session states.

       PreRestore Event

       Old snapshot set: {88c27edd-551d-4e8f-9235-8ce9e4a0e8e5}
       Old operation: 1016
       Old state: 1
       Old failure: 0x800423f4
       Old extended failure hr: 0x1
       Old extended failure message: 0
       Execution Context: Writer
       Writer Class Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
       Writer Name: Microsoft Hyper-V VSS Writer
       Writer Instance ID: {fb67f141-4ab5-4e4d-9991-7eeda66ae4ef}


    It is referenced in a microsoft bulletin here:

  • refer the steps below from the following documenrt

    Manually install VSS on the VM per the following steps:

    1. In the VMware Tools installer, select Modify > Drivers > VSS.
    2. Complete the installation process.
    3. Restart the virtual machine to make sure VSS components are installed and running.

    For more information, review the following Microsoft document: - Error message when you perform a Volume Shadow Copy Service restore operation: "0x80042409"