With the update to Windows 10, we made some changes to the way you access settings in our Windows Store app. To access the app's settings on your Windows 10 device in tablet mode, start by swiping down from the top of the screen. This should reveal a tab at the top of your screen.
Pull down the tab to reveal the light gray bar at the top of the screen. Here you will be able to find the menu in the upper left corner of the screen.
Choose 'Settings' from the menu to open the Settings menu on the right side of the screen. From here, you can customize your account information and settings.