If staying within the "same family", meaning you had an Intel chipset and so does your new board, you shouldn't have to do anything. Its always a good idea to delete old drivers before you shut down. Lan, sound, etc. Don't delete the video drivers if you are moving the card over to the new mobo.
If you get stuck, the repair install will work. You do this by installing a new copy. It should then find the old build and offer to repair it for you. Don't hit R when its done loading. That takes you to the recovery console, and you don't want that.