How to Upgrade Your Windows Phone to Windows 10 Now
 

Microsoft is technically selling two phones with Windows 10 built-in, but it hasn’t released the update for older phones just yet. If you have a Windows phone, though, there’s a good chance you can upgrade it to Windows 10 now, even if your cellular carrier is planning to delay or block the update.

http://www.howtogeek.com/239442/how-...indows-10-now/