Adera

Just to add to C4B0S3 solution. I had the problem where I couldn't see anything when even going to the right corner of the screen. I had everything set to "share" within my PC Settings but still nothing showed.

If you encounter this problem use this shortcut:
Windows Key + H

Then to the right the SHARE will show..Then use your email or skydrive and achievement will pop!

Just start playing episode 1 (the level, not just the game or main menu) and use the charm bar by going to the upper right corner of the screen and choose "share" (it's the bar where you find the settings and the shortcut to the metro screen, second object). Choose an app (like email app) to share your progression. The achievement shoul pop up right after. No need to send anything to your friend.

Edit: As TSG Dwaggie mentioned in the comments, you have to enable "share" in the PC-Settings.

So it seems to work on Windows 10 version 1703 (15063.674) as of the 13th of October 2017, just start playing any episode, bring your mouse to the top of the screen until you see a white bar with the title and a menu option on the top left, select "Share", pick an option in the list and there it is the achievement pops right up.
To make sure the option works enable at least your email using the Win 10 application.
And as C4B0S3 said, no need to send anything to anyone.
Hope it helps

The Windows 10 guide didn't help me out on this achievement, so here is the way how to earn this easy 15G if you're playing on a Windows 10 device:

Play Episode 1 (which is free). After the Adera opening screen, it'll load the game. If you're in fullscreen mode, move your mouse cursor all the way to the upper part of the screen. You see a tab that has the Arrows (pointing southwest and northeast that causes the game to go into fullscreen or pointing at each other that causes the game to exit out of fullscreen), Dash (which hides the window), Square (maximizes the screen but never goes to fullscreen mode), and X (Exit out of the program). In the left side of the tab, you see a "hamburger" symbol or three lines. Click on it and there will be an option to share. After clicking on the Share button, a window will appear asking you what application you want to use to share with. Click on Mail and after it loads to the email message editor, exit out of the Mail window. You don't need to send somebody a picture of this game. Then achievement pops.