product : ms win vista home basic sp1 type : sp1 upgrade media : dvd langauge: international english service pack 1 (sp1) features:- * win vista service pack 1 (sp1) is an update to win vista along with improvements delivered to users * sp1 contains changes focused on addressing specific reliability & performance issues * supports new types of hw adding support for several emerging standards * makes it easier for it administrators to deploy & manage win vista