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  1. Hornetsecurity KnowledgeBase
  2. VM Backup (VMB)
  3. KB Articles

KB Articles

  • How to restore to a new / different Host (Hypervisor)
  • Upgrading from version V5, V6 to V8
  • Offsite Backup Server v8
  • Cannot connect to VM Backup console due to a "Connection Error"
  • Error: "No Valid Partition found" during File level restore
  • Troubleshooting backups which "Backed up in a crash-consistent state"
  • Unable to deploy VM Backup Hyper-V Host Agent: "The Windows Installer Service could not be accessed."
  • Error "HYPERVBACKUPCONTROLLER_003 - This virtual machine cannot be backed up because it contains disks on both local volumes and cluster volumes"
  • Exchange Transaction Logs not being Truncated
  • Backup failing with error: "VSS Error: 790"
  • SQL Transaction Logs not being Truncated
  • Error "This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms" during backup
  • Hyper-V VMMS giving "Account restrictions are preventing this user from signing in."
  • Dealing with "volsnap" errors in the System event log
  • Backups failing with a "The file is configured as a file pertaining to this VM, but seems to be missing."
  • Altaro VM Tools successfully deployed, but Exchange Transaction Logs are not being truncated (VMware Only)
  • Warning: "One or more network adapters could not be added to the VM" during Restore (VMware Only)
  • Hyper-V VMMS giving "General access denied error" on VHDX files
  • Unable to get a list of the VMs files which need to be backed up using the VSS Provider. (Error code 'ALTERR_JOBBATCHER_011')
  • Checking your VMware license via the Management Object Browser (MOB)
  • Error during installation: "Another installation is already in progress. Complete that installation before proceeding with this install."
  • Backing up to Incorrect Drive when using Backup Drive Swapping
  • Backup failing with error: "VSS Error: 779"
  • Backup Failed due to a Microsoft Shadow Copy error caused by an Event ID 8193 in the Guest VM
  • Error: "Backup failed due to an error in the Microsoft Shadow Copy component" with Event IDs 12292 and 22 and VSS Error: "0x800423F3"
  • VM restored successfully but does not show up in Hyper-V Manager
  • Backups of VMs with SBS 2011 failing with VSS Error: 0x800423F3
  • Error: "This Application requires Windows Server 2008 R2" during upgrade
  • Error: "Failed to revert to VSS snapshot on the virtual hard disk" when EaseUS Todo Backup is installed on the same machine as VM Backup
  • Backup failing with error "[Windows Error 665]: The requested operation could not be completed due to a file system limitation"
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