Brutally copy VM vhd?

Crossposted using Lemmit.

Original post from /r/sysadmin by /u/ReeX on 2023-07-07 10:25:41+00:00.

We want to make some changes to a virtualised Windows server which is running on hyperv. Before doing so, can we just shutdown the VM and copy the VHD? In case of failure, brutally restore the vhd and restart?