Item: Repair Hyper-V
Rating: 4.7
Author: David

Contents:

What is a VHD File in Hyper-V?

VHD is a type of file extension used as disk image file format to store all data of a hard drive. VHD generally stands for Virtual Hard Disk and it uses .vhd file type to store data on the virtual environment in same way as on hard drive. In addition, there are basically two types of VHD file and both of them are mentioned below:

Static Hard Disk Image: It is a file, which creates fixed amount of predefined disk space for the host file system automatically. It consists of a raw disk image that is followed by a VHD footer.
Dynamic Hard Disk Image: It is a file, which at some point of time becomes as large as the size of original data written to it along with the header and footer size. Users can define the hard disk size according to their need.

There is a chance for the VHD files to get damaged due to various reasons. To restore VHD partition, the VHD repair software can be made use of.

Reasons Behind Crashed Hyper-V VHD Files

There are many different factors that can badly affect the Hyper-V VHD and VHDX file and all of them are discussed below:

Virus or Malware attacks
Errors due to wrong commands in an application
Failure of storage devices
Software errors due to humane activities
Connecting with infected external devices
Accidental shutdown of the system
Deletion or removal of any system files
Accidentally removing system registry
Improper disk management

Some Common Hyper-V VHD Error Messages

Cannot attach a .vhd file
The file or directory is corrupted and unreadable
HYPER-V Error 12700
VHD FILE Error CTX133832
Error 87: The Parameter is Incorrect
Hyper-V service is not available
Hyper-V Failed to Restore

The error messages related to Windows VHD files can be overcome using VHD Recovery Software.

Know How to Recover Deleted Data from VHD Files

If you want to recover deleted VHD files, use Hard Drive Recovery tool.

Solution 1: Use CHKDSK to Repair Hyper-V VHD & VHDX

Initial thing that a user can try to restore vhd Hyper-V is to check the integrity of a VHD or VHDX file that needs to repaired. First of all, a user needs to run a script on Windows PowerShell, which helps in mounting the VHD file into a root folder. After that, one can run a CHKDSK on it. A user needs to run the command given below:

#First of all, select what VHD you want to mount
$VHDName = "V:\serverx.vhd"
#Get the MSVM_ImageManagementService
$VHDService = get-wmiobject -class "Msvm_ImageManagementService" -namespace "root\virtualization" -computername "."
#Now, mount the VHD
$Result = $VHDService.Mount($VHDName)

After executing the above commands, run a CHKDSK on the VHD or VHDX file.

Solution 2: Create a New Virtual Server to recover data from VHD

Another possible method to repair crashed Hyper-V VHD file is that one can creates a new Virtual Machine. After that, you can add the damaged .vhd to newly created Virtual Server and then compact it. To do the same, follow the steps given below:

First of all, create a new Virtual Server, and then add a new hard disk to it.
After that, click on Settings option and choose the hard disk that you have added earlier. Now, Browse the VHD file, which will not load.
Next, click on the Virtual Disk Wizard, and choose Compact option. Ensure that Convert it to a fixed-size virtual hard disk option is checked.

Remember: If the original size is 50 GB of VHD in actual and it stores only 10 GB data, then the newly created VHD file will be compacted to 10 GB simultaneously.

At last, you can easily save this .vhd file as a new file with a new or default name.

When the VHD file is compacted successfully, you can copy the .vhd file to the original backup and can try to mount that VHD file.

Solution 3: Use Free VHD Tool to Repair Damaged .vhd/.vhdx File

One can also try the free VHD tool offered by the Microsoft to recover corrupt VHD files. In addition, the tool has an option to repair VHD/ VHDX file. Therefore, to do the same, download the .exe file, and run the tool as an administrator on the local system by following the command shown below:

VhdTool.exe /repair <BaseVhdFileName> <FirstSnapshotAVhdFileName>[/quiet]

Solution 4: VHD Restore Software to Recover Data from a VHD File

If the above mentioned manual methods doesnot help you to rescue VHD files, then you can go for the VHD Recovery Software which can fix damaged Hyper-V VHD and restore them without any troubles.

Top Features in Hyper-V VHD Repair Tool

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Demo Limit

Demo version of VHD Recovery software allows to preview the recovered data from the scanned Windows VHD file.

System Requirements

Support: Windows 11, 10 & All Below Versions
Processor: 1 GHz processor (2.4 GHz is recommended)
RAM: 512 MB of RAM (1 GB is recommended)
Hard Disk Space: 5 MB of free hard disk space

Pre-Requisites

If you are using Windows 11/10/8.1/8/7, then please launch the tool as "Run as Administrator".

Steps to Recover Data from Crashed Huper-V VHD Files

Step 1: Launch Windows Hyper-V VHD recovery software and click on Open

Step 2: Browse & Select the VHD file and then choose the Partition that is to be recovered

Step 3: Click on Scan Partition or Scan button to start scanning the partition to recover VHD data

Step 4: Choose the type of Recovery Mode to recover lost VHD file

Choose from the two options given below to recover files from VHD backup

Quick Scan: For scanning healthy .vhd file.
Advance Scan: For scanning damaged Windows VHD file.

Step 5: If both the scanning modes failed to scan the .vhd file, then switch to Raw Scan option

Step 6: As the scanning completes successfully, loading of VHD file is confirmed. Click on OK

Step 7: Search for a particular data using search box which provides the data from the scanned VHD

Step 8: After scanning VHD file, a preview of the data is provided.

Step 9: Recover the single file by choosing the desired file & clicking on Extract Selected File option.

Step 10: Choose the folder that needs to be exported from the left panel using Extract Selected Folder option.

Contents:

What is a VHDX File in Hyper-V?

VHDX is another Hyper-V virtual hard disk (VHD) format used by Windows Server 2012.It is used for handling huge data storage on Hypervisor Server like Window Server 2012 R2. It is basically an extended form of VHD file with some new enhancements. For example, improve performance, prevent corruption and a maximum storage capacity of 64 TB. However, it works exactly the same as the physical hard disk and its main concern is on the guest operating system.

Reasons Behind Crashed Hyper-V VHDX Files

Failure of Hard Drive or Storage Media
Virus or malware attacks
System or Power Failure
Connection with already corrupted media devices like Flash drives, SCSI, IDE etc.
Corruption of VHDX due to RAID failure or virus
Hard disk crashes cause a corrupt VHDX File
Accidental reformatting of partitions

Some Common Hyper-V VHDX Error Messages

Failed to open attachment 'C:\directory \MyVHD.vhd'. Error: The file or directory is corrupted and unreadable
There was an unexpected error in configuring the hard disk on TestVM
An error occurred when attempting to retrieve the virtual hard disk

The VHDX error messages can be overcome using VHDX Recovery Software

Know How to Repair Damaged VHDX File

Solution 1: Manual Solution to Recover VHDX File

To get an idea regarding the manual solutions available to repair damaged VHDX file, Read in detail the Solutions 1 through 3 given in the VHD File tab.