Problem accessing E drive on Hyper-V VM after server crash

Question

Running Windows 2016 server with a hyper-v Gen 2. Two hard drive files are attached to the VM, C drive and E drive. The physical box crashed. When it was repaired the server booted as well as all of the VM's with the exception of the E drive on this VM. When I try to access it in the VM it says that it needs to be formatted. I can't do a Chkdsk on it as it says it is a REFS drive format and doesnt require it. I dont recall the format type when I created it. There are a number of AVHDX files as well as the VHDX. When I choose the drive and inspect all the drives link back to each parent one by one to the VHDX files.

I narrowed down the problem to one of the latest AVHDX files. I can load each one before it and I can see data, when I get to that one it tells me that the disk is unrecognizable. I have another avhdx file after that one but unless I can repair this one I can't get to it.

Any suggestions on how to repair the single file?

Answer 1

Hi,

Thank you for posting the issue to Q&A forum.

ReFS drive will proceed repair automatically. So, you cannot do a Chkdsk.

Please kindly note file recovery is now out of Microsoft support scope. If you have any backup for these data, you can try to retrieve them from the backups.

If there is no backup, I'd suggest that you should search to see if there is any third-party tool can help repair file.

Appreciate your understanding.

Thanks,

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