The "Certified for Microsoft Windows^® Vista™" logo represents Windows^® Vista™ Premium. It is applicable to devices that have passed Microsoft Windows^® Vista™ DTM (Device Testing Manager) tests with Vista™ Premium requirement. And in this case, it applies to ASRock motherboards. This "Certified for Windows^® Vista™" logo helps customers identify devices that meet standard quality and compatibility of Microsoft Windows^® Vista™ Premium operating system.

The "Works with Windows^® Vista™" logo represents Windows^® Vista™ Basic. It is applicable to devices that have passed Microsoft Windows^® Vista™ DTM (Device Testing Manager) tests with Vista™ Basic requirement. And in this case, it applies to ASRock motherboards. This "Works with Windows^® Vista™" logo helps customers identify devices that meet standard quality and compatibility of Microsoft Windows^® Vista™ Basic operating system.

The "Designed for Microsoft Windows^® XP / XP x64 edition" logo identifies software and hardware merchandise that meet or exceed certain quality standards of compatibility with the Microsoft Windows^® XP operating system. Microsoft offers the "Designed for Microsoft Windows^® XP / XP x64 edition" logo to help customers identify merchandise that meet a baseline definition of features and quality goals and periodically reviews compliance with these standards.

You may click here to check "ASRock Motherboard" in Microsoft Website.