Im confused on what windows 7 i should but for my i7 imac. Whats the difference? Which should i buy?
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116754
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116716
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116754
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116716