Hi,
You might want to take a look at this:
https://www.altaro.com/hyper-v/copy-hyper-v-vhd-file-virtual-machine-running/
Based on my understanding, hot copy of a vhdx might cause data loss, and Microsoft recommends that you turn off the VM before copying the .vhdx file.
Thanks for your understanding.
Best regards,
Danny
-----------------------------
If the Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.