We got nailed two weeks ago by Conficker, I ran through the 26 step checklist from Mircrosoft on my own computer, as well as on our domain server. It says near the end to reverse all the changes, but I kinda like the changes (Disables Autorun and some other settings).
Is there anything in that fix that'll come back to haunt me down the road?
Also, maybe the group policy never took effect, I couldn't quite tell. Do your policies have to be placed on computers or users (or does it matter?) for this fix?