Repair Vhdx Powershell [best] May 2026

Repair-VHD -Path "C:\CorruptedVMs\server01.vhdx" -Path "D:\Backups\healthy_server01.vhdx" -Passthru

# Get the volume letter (e.g., F:) chkdsk F: /f /r /x For non-structural corruption (e.g., block allocation issues): repair vhdx powershell

[Parameter(Mandatory=$false)] [string]$BackupPath = "$env:TEMP\vhdx_backup_$(Get-Date -Format 'yyyyMMdd_HHmmss').vhdx" ) if (-not (Get-Module -ListAvailable -Name Hyper-V)) Write-Error "Hyper-V PowerShell module is required." exit 1 Repair-VHD -Path "C:\CorruptedVMs\server01

Import-Module Hyper-V -Force Copy-Item -Path $VhdPath -Destination $BackupPath -Force Write-Host "Original VHDX backed up to $BackupPath" Step 2: Try Repair-VHD try Write-Host "Attempting Repair-VHD..." $result = Repair-VHD -Path $VhdPath -Path $HealthyCopyPath -Passthru -ErrorAction Stop Write-Host "Repair-VHD succeeded. State: $($result.State)" exit 0 If that fails, mounts the VHDX read-only, runs

# Recreate the differencing disk from healthy parent $parentPath = "D:\BaseImages\parent.vhdx" $newChildPath = "E:\VMs\newchild.vhdx" New-VHD -ParentPath $parentPath -Path $newChildPath -Differencing Advanced Script: Auto-Repair with Backup Fallback <# .SYNOPSIS Attempts to repair a VHDX file, falling back to a backup copy. .DESCRIPTION Uses Repair-VHD if possible. If that fails, mounts the VHDX read-only, runs chkdsk, and then replaces with a backup if corruption persists. #> param( [Parameter(Mandatory=$true)] [string]$VhdPath,