Mounting existing VHDX on Win10 throws "You need to format disk" message

Question

Need help trying to mount a VHDX used for storing files & projects (it's not a VM).

I'm moving a VHDX from my old Win10 laptop to the new one. When attaching the copied VHDX via Disk Management on the new laptop I'm prompted with, "You need to format the disk in drive X before you can use it."

Reproduce:

1. Copy VHDX from old Win10 laptop to new Win10 (both NTFS)
2. DiskMgmt.msc
3. Action > Attach VHD
4. Select my VHDX file
5. Recieve error message above, followed by, "The volume does not contain a recognized file system."

Note: Both machines have McAfee drive encryption installed on them

I did a SHA256 on both files & it's the same hash. Searched Google and Microsoft for hours and didn't come up with anything.

Answer 1

Not sure if it help in your particular case, but, would suggest trying partition recovery with this tool: http://www.ntfs.com/recovery-toolkit.htm