You don't For one part, Windows 10 does quite good job of updating your drivers on its own (although not always, sometimes it screws it big way). For the other part, there is very little need to update graphical drivers now - I only do that if any game refuses to work correctly, otherwise I let them be. It's not like your few years old model will get +10% speed bonus in some games because of new driver.
as others have noted, it is not really needed to stay totally up to date on the drivers unless it has something you need such as a specific game fix/optimization. what windows installs here and there is usually good enough.
otherwise looking every few months is good enough. i can't even tell you the last time i updated my drivers. probably been at least 8 months