On the Windows 10 taskbar, type “ store” in the Cortana Search box and you can open the Microsoft Store app from the search result. Method 2: Open Microsoft Store Using Cortana Search You can access the Microsoft Store app from both the left side of your Start Menu and the right side as live tiles. Method 1: Open Microsoft Store from Start MenuĬlick the Start button. In this post we’ll show you 5 ways to open Microsoft Store app in Windows 10. Microsoft Store, formerly known as Windows Store, is built into Windows 10 which lets you browse and download millions of apps and games.