Purchased a house with a partially finished garage. The ceiling and walls have drywall, but no taping. The previous owners have nailed numerous things into the wall over the years and of course since it's a garage it's quite dirty.
Can I fill in the holes and dust off the drywall and then just tape it? Or, is there some reason where due to how long the drywall is exposed and it being super dirty that would make this a bad idea?