try reset your bios and cmos. motherboards nowadays have a button on them that reset the bios. try find your motherboard manual if you cannot find the button. you should be bale to find your motherboard manual online if you dont have your physical copy.
should be fine. if the dog did manage to scratch through the skin. should clean it. who knows how many bacteria and viruses are on dogs feet and nails. make sure your dog doesnt have rabies