Mount-VHD -Path "C:\Corrupted.vhd" -ReadOnly This prevents further writes to a damaged structure.
diskpart select vdisk file="C:\Corrupted.vhd" attach vdisk list disk If the disk appears but has no partitions, attempt to bring it online: how to repair vhd file
If read-only succeeds, dismount and remount with write access: Mount-VHD -Path "C:\Corrupted
Repair-VHD -Path "C:\Corrupted.vhd" -Force This command fixes minor footer and header inconsistencies. It does repair logical file system damage or data block corruption. Run it on a copy first. Method 3: Manual Fix Using DiskPart For VHDs that mount but show as "Unknown" or "Not Initialized" in Disk Management: how to repair vhd file
After mounting, the VHD appears as a drive letter (e.g., E:). Run:
PowerShell includes a dedicated cmdlet:
Open PowerShell as Administrator: