I bought a qualifying Windows Vista Business-based PC but I used downgrade rights to install Windows XP Professional. Do I still qualify for the upgrade?
Yes, a system that was sold with a Windows Vista Business Certificate of Authenticity (COA) and has Windows XP Professional installed, and meets all other program offer requirements can be eligible for the Windows 7 Upgrade Option offer. For the best possible experience, we do not recommend running Windows 7 on a PC designed for Windows XP. Before installing Windows 7 on your PC, please review the system requirements. If you are installing Windows 7 on a PC currently running Windows XP or Windows Vista, you will need to back up your files, do a clean install of Windows 7, and then reinstall your applications and transfer your files.