WHAT EDITION OF WINDOWS WILL I GET AS PART OF THIS FREE UPGRADE?

When you upgrade, you’ll stay on like-to-like editions of Windows. For example, Windows 7 Home Premium will upgrade to Windows 10 Home.

 

Windows 7³

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From Edition	To Edition
Windows 7 Starter	Windows 10 Home
Windows 7 Home Basic
Windows 7 Home Premium
Windows 7 Professional	Windows 10 Pro
Windows 7 Ultimate

 

 

Windows 8⁴

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From Edition	To Edition
Windows Phone 8.15	Windows 10 Mobile
Windows 8.16	Windows 10 Home
Windows 8.1 Pro	Windows 10 Pro
Windows 8.1 Pro for Students

 

 

“N” and “KN” editions follow the upgrade path of the parent edition (e.g., Windows 7 Pro N upgrades to Windows 10 Pro N).

 

Some editions are excluded: Windows 7 Enterprise, Windows 8/8.1 Enterprise, and Windows RT/RT 8.1. Active Software Assurance customers in volume licensing have the benefit to upgrade to Windows 10 enterprise offerings outside of this offer. 

http://www.microsoft.com/en-us/windows/Windows-10-faq