Microsoft - ApplicationFrameHost.exe

This process is related to Universal Windows Platform apps, also known as Store apps—the new type of app included with Windows 10. These are generally acquired from the Windows Store, although most of Windows 10’s included apps like Mail, Calculator, OneNote, Movies & TV, Photos, and Groove Music are also UWP apps. Specifically, this process is responsible for displaying these applications in frames (windows) on your desktop, whether you’re using Windows 10 in desktop mode or tablet mode. If you forcibly end this process, all your open UWP apps will close. RELATED: Why (Most) Desktop Apps Aren't Available in the Windows Store These apps are more sandboxed than traditional Windows apps. Unlike traditional Windows desktop apps, often referred to as Win32 apps, UWP apps are limited in what they can do. For example, they can’t snoop on data contained in other apps. That’s likely why they require an additional process to display their content on the Windows desktop. However, Microsoft doesn’t provide any official documentation that explains exactly what this process is responsible for.