One of the most annoying errors IMHO is the one that you get when you change out a NIC (or remove a NIC from a VM) and try to reuse the IP address on the same machine.
So to get rid of that, first set the following machine environment variable:
... and give it a value of 1
I'll seriously consider adding this to the next SOE I work on, probably with a
setx DEVMGR_SHOW_NONPRESENT_DEVICES 1 -m
This will allow you to see the removed devices in Device Manager when you go into the View menu and tick 'Show Hidden Devices'