First, backup the Windows shares from the registry by following the steps outlined in the Microsoft article.
https://learn.microsoft.com/en-US/troubleshoot/windows-client/networking/saving-restoring-existing-windows-shares
– Disable Backup Jobs
– Copy registry export to share
– Before Migration, check if all files on shares are closed
– Shutdown old Fileserver
– Apply old Fileserver Name and IP to the new Server and reboot
– Remove (but don’t delete) disks from old Fileserver
– Add *.vdmk’s from old Fileserver to the new Fileserver
– Set the disk(s) to online
– Import share registry file on new server