IT admin
Disk full after months of checkpoints
Finds 14 orphaned AVHDX files left by a failed backup agent and reclaims 180 GB after a dry-run shows what will go.
Coming SoonIn developmentPro editionVirtualization
Checkpoint Chain Doctor
Visual differencing-disk chains with sizes, orphan detection and offline repair.
The problem
Checkpoints leave AVHDX files behind, parents go missing after a move, and Hyper-V Manager offers no way to see sizes or repair a broken chain. People lose VMs to 'The chain of virtual hard disks is broken'.
Features
- Chain graph per disk with delta size and age per node
- Orphan AVHDX detection by scanning folders against Hyper-V's view
- Reconnect parent with identifier check, not just path
- Offline merge with progress and verified result
- Dry-run that shows space reclaimed
Who it is for
Freelancer
VM folder moved by hand to a new drive
The parent path broke on the move. Chain Doctor relinks the parent only after confirming the disk identifier matches.
MSP
Audit before a hardware migration
Validates every chain on an old host before moving 30 VMs, so none fails on import at the new site.
Benefits
- Reclaim gigabytes hidden in forgotten AVHDX files
- Fix 'the chain of virtual hard disks is broken' without rebuilding the VM
- See exactly what deleting a checkpoint will merge before it happens
Built to be trusted
- Chain snapshotted to the Reports folder before any merge
- Merge runs on a copy when space allows, swap on success
- Parent relink only when the parent's disk identifier matches
Good to know
The timeline view ships; repair and merge are planned. Merge of a very large chain is bounded by free space, which the dry-run reports.
Under the hood
For technical readers
- virtdisk.dll MergeVirtualDisk, SetVirtualDiskInformation
- Own MS-VHDX metadata parser for offline chains
- Reports engine snapshots
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Questions now? Contact our team.