How to properly restore a virtual machine with an AD server on board?

Question

Active Directory

Good evening! Help with advice, there are two AD servers and both on hyper-v virtual machines. The virtual machine with the main server is not loaded (the virtual disk is damaged), the additional one works. I have a backup of the virtual machine, but since I have not encountered a similar situation, I would like to consult:
1) If I stupidly copy the virtual hard and replace the damaged one, will it work?
2) Backed up machine a month ago, I understand correctly that after recovery it should be automatically updated with additional. servers?
3) Maybe it makes no sense to suffer, transfer all roles to additional. server and raise a new AD?
Thanks for the replies!

Answer 1

Failed to restore the virtual machine. I took the following steps:
1) I intercepted the roles with the second CD
2) I removed the first CD from HELL
3) I installed a new CD
It seems that everything started up.
Thanks to all!

Answer 2

In general, you keep the second controller precisely so that in the event of a fall of the first one, you can transfer the roles and calmly restore them.
IMHO, restoring from a backup, in this case, will be evil, you will only get problems with replicating AD data.
Best of all, if some important services remain on the broken cd, restore it without a network from the backup, unload the services. Then - reinstallation (Roles on the second all this time). After the return of the first, the role can be back and forth.
If there are no services, only CD - quietly all the roles on the second, reinstalling the first, then spacing the roles as you like.