SP3 will update from SP2 onwards, so you don't have to install any of the in-between updates.
But when you install SP3 you will later be offered further updates. I would get those installed as well, when you are satisfied the system is stable with SP3.
That Tech? Doesn't know what he is talking about. Not installing updates leaves Windows vulnerable. He should know that.
I have the automatic updates turned off because the last time I got my computer got fixed last year the tech told me not to do any updates.
I never needed Service Pack 3 before but I can't play the
demo of Puresim Baseball 4 unless I have this installed.
Can I just download and install Service Pack 3 or do I have to download and install all the updates I missed first????