Windows 7 Professional SP1 64bit (OEM) System Builder DVD 1 Pack [Old Version] Make the things you do every day easier with improved desktop navigation. Make your web experience faster, easier and safer than ever with Internet Explorer 8. Run many Windows XP productivity programs in Windows XP Mode. This OEM Windows product IS NOT an upgrade product. This Windows product does not come with Microsoft support and requires a clean install. Easily create a home network and connect your PCs to a printer with HomeGroup.