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If you use Windows Store apps, many of them are UWP apps, and ApplicationFrameHost.exe (Application Frame Host) is an important process that should be running on your Windows PC to make these UWP apps function properly. The well known .exe is required for successful execution and management of UWP applications on Windows systems, so... without it, most UWP apps won't run.
We at SpyShelter in Austin, Texas aren't necessarily a fan of Windows Store apps, but if you're going to use UWP apps, you're going to need to have the ApplicationFrameHost.exe running on your PC. As long as ApplicationFrameHost.exe is signed by Microsoft, then it's a safe process, and should be normal to find running in your Windows Task Manager.
(Researched by Jon @ SpyShelter Labs)
We’ve found Microsoft Windows should be the publisher of ApplicationFrameHost.exe.
How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.
The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.
Below are 4 simple steps you can take to see if the ApplicationFrameHost.exe process is safe or malware.
Our team at SpyShelter has been studying Windows PC executables for over 15 years, to help fight against spyware, malware, and other threats. SpyShelter has been featured in publications like The Register, PC Magazine, and many others. Now we’re working to share free, actionable, and easy to understand information about Windows executables (processes) with the world, to help as many people as possible keep their devices safe. Learn more about us on our "About SpyShelter” page.