Steve recently installed Norton AntiVirus off his Windows Vista machine, and now he's having all sorts of trouble. Now he gets a master boot record error. Leo says that's the file that starts up the computer and it's damaged. And there's also a other problems Steve is dealing with. This is why Leo hates Norton. Norton can quarantine system files and that messes up the entire works. You also probably didn't uninstall all of Norton, either. At this stage, you need to just bite the bullet and reinstall Windows. And do it with Windows 10 while you're at it. Another option is to use Linux.