As much as I hate to say it, Windows 7 is kaput. It's been a good OS for me. But time marches on and we have to adapt. Win 7 will increasingly become unsafe for browsing the Internet or sharing files with other computers. Unless you intend to use it to play Solitaire, unplugged from the rest of the world, its usefulness is in serious decline. I certainly wouldn't use it for anything that is critical to your business.