Question: can you upgrade windows 7 oem to windows 10?
Answer: Learn more about Windows 10 versions at Microsoft. ... You can also still upgrade Windows 10 Home to Windows 10 Pro by using a product key from a previous business edition of Windows 7, 8, or 8.1 (Pro/Ultimate). That can save you $50 to $100 in OEM upgrade charges if you buy a new PC with Windows 10 Home preinstalled.