With Windows 7 Professional, fewer walls stand between you and your success. You can run many Windows XP productivity programs in Windows XP Mode and recover data easily with automatic backups to your home or business network. You can also connect to company networks effortlessly and more securely with Domain Join. With all the exciting entertainment features of Windows Home Premium, it's a great choice for home and for business.MICROSOFT WINDOWS ANYTIME UPGRADEIf you want to upgrade your copy of Windows 7, you can go online and do it in about 10 minutes, right from your PC.No disks, no delays. And with Windows Anytime Upgrade, you can upgrade to a more advanced edition of Windows 7 - from: Windows 7 Starter to Windows 7 Home Premium, Professional or Ultimate; Windows 7 Home Premium to Windows 7 Professional or Ultimate; Windows 7 Professional to Windows 7 Ultimate - in as little as 10 minutes. That way, you get to take advantage of extra features while keeping your current programs, files, and settings intact.Upgrading doesn't mean installing new software. In Windows 7, the software you need comes preinstalled. All you have to do is purchase an upgrade key from Microsoft or another authorized retailer to unlock those shiny new features.