I am using windows vista home premium 64-bit. I tried downloading, and installing SP2 from the automatic windows updater, but when it is installing, it does so indefinitely. I let my computer idle for literally about Six hours while it was trying to install SP2, but it didn't budge 1%. What are the advantages SP2 has over SP1? Is there any where on the internet that I can download it for free? Perhaps from an official microsoft source?