you will be more secure , you will be able to install internet explorer 7 and windows defender , you will be able to install windows media 11 , most of the upcoming microsoft applications will work only on widnows vista and windows xp service pack 2 so you have to upgrade your service pack
Well the SP 2 have more secruty and more features.
I am not exaclt sure about that wehat exactly they have.
But i hav read one thing one many sites that theya re good to make you cvomputer more secrue and realiable.
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