I have a asus notebook( not sure on the model) and im pretty sure it has a virus or two on it. Im considering doing a factory reset on it however would it be smart to put all of my steam games and other files on a flash drive or external hard drive so i dont need to redownload them? Also when i bought my laptop it came with windows 8.1 but when it was free to upgrade to windows 10 i did it. Will it be reset back to windows 8.1 and if so can i upgrade it again for free? Thanks and have a great day.