I have an unlicensed WinXP, should I turn off automatic updates?
Yes, you should disable automatic updates. Microsoft checks for the validity of your Windows XP license when your computer connects to their servers for the updates. If it’s a pirated license, Microsoft will stop issuing updates. While this shouldn’t result in a complete system failure, it’s best to just turn it off since it’s a waste of time. I’d suggest you either buy Windows XP legally or find someone who can give you a bulk license key (which will make your XP install LOOK legal).