Script to do a full backup using WBADMIN to a local staging drive and then copy the resulting files to another server. The clean-up script (called within my script) can be found here:https://gallery.technet.microsoft.com/scriptcenter/Delete-files-older-than-x-13b29c09
This resulting backup files from this script allows me to do a bare metal restore of a virtual domain controller within ~30 minutes. This assumes complete meltdown of your domain – catastrophic failure, schema issues, compromise, etc. – where you need to restore it from scratch – this is a last resort action!. Once restoration is complete move onto the rest of the recovery process. Of course this script will also do nicely for just backing up all critical drives and registry on any other server or client!