Why is my computer running so slow after reinstalling Windows?

Episode 894 (1:32:00)

Chris from Virginia

Chris had a trojan on his computer, and had to reinstall Windows. Leo thinks that's the only way to be sure he's free and clear of any viruses or anything. Chris says his computer is running slow since reinstalling, though. Leo says his computer should run faster after a reinstall. He should make sure all of the updates are done. The chatroom suggests that his PC doesn't have the official hardware drivers, and is just using the generic ones from Windows. It's always a good idea after reinstalling Windows to get drivers from the manufacturer's website for anything they offer.