This tutorial, just do in Windows smart phones. Not for PC or Desktop Computer, because non-windows desktop can be upgraded. Rather, it can also Windows in phone upgrade. All done automatically, without requiring you to provide feedback. If you can't wait and want to quickly in the solution, can be done by means of a click button: "check update" in the Settings menu> Update phone.
First of all:
1. Instal, preview of developer
This application aims to detect installed your Windows phone periodically, via the internet. So the Windows developers can find out just about anything that will be added to expand the windows phone software that already exists. Of course, you have to use your account. You can use an existing Microsoft account, as evidence that you have been using windows software. Later in the Tutorial you can see the Preview of the developer.2. Setting on Menu Setting
Turn ON, the Automatic update. Can do in: Setting menu> Phone update> Thick the Squre: " automtically download updates if my data allow it"3. Next, You just waiting Confirm- notification from them for Upgrade windows in Automatically.
Before upgrade Windows, best is have a full Capacity of battery...or Min is 30% in side of capacity battery, Easy like a instaling Windows application on Windows mobile phone.