Yep! 1 year already! Time flies when you're having fun:)
The free upgrade offer for Windows 10 ended yesterday at 11:59 PM, UTC -10 (Hawaii).
1 year later, and with more than 350 million machines installed, it surely was a nice ride. But it's only the beginning!
Enterprises that have SA (Software Assurance), will always be able to upgrade to Windows 10, following always the innovations that Microsoft is making available.
Alternatively, it's either via the Volume Licensing program or when buying new hardware from your favorite OEM.
For home users, head out to your favorite retail store, buy it online via Microsoft Online Store or if you have Windows 8.1 you can purchase the upgrade in Windows Store.
See you around!