Windows immportant update prompting says by updating with the Windows Service Pack 1 supplement will Help more than hurt to give my PC better over all permormance support & other valued advancements within!? IS THE SERVICE PACK 1 REALLY NECESSARY & WORTH THE DOWNLOAD? NOTE: 07' Acer PC ast180/ Vista home basic /HD160GB/ new updated & installed 2GB memory /processer 800mhz