What Is Application Frame Host on Windows 10 | Explained

If you have ever opened the Task Manager on your Windows 10 PC, you might have noticed a process called Application Frame Host running in the background. This process has the file name ApplicationFrameHost.exe and is located in the C:\Windows\System32 folder. But what is this process and what does it do? Is it safe or a virus? In this blog post, we will answer these questions and more.

What is Application Frame Host?

Application Frame Host is a system process that is related to Universal Windows Platform (UWP) apps, also known as Store apps. These are the new type of apps that come with Windows 10 and can be downloaded from the Windows Store. Some examples of UWP apps are Mail, Calculator, OneNote, Movies & TV, Photos, and Groove Music.

What does Application Frame Host do?

The primary role of the Application is to manage UWP app windows. When you launch a UWP app, it opens in a separate window that is managed by the Application Frame Host process. This window provides a consistent look and feels across all UWP apps, and it allows users to switch between different UWP apps easily.

Additionally, this host also manages the state of UWP apps. When you close a UWP app window, it’s not necessarily closed completely. Instead, it’s simply minimized to the taskbar, where it can be easily accessed again. This allows for a more seamless experience when switching between different apps.

Why is Application Frame Host using so much CPU?

Application Frame Host should normally use only a small amount of CPU and memory resources. However, some users have reported that this process can sometimes consume high CPU or cause other issues. This could be due to a bug in Windows 10 or some other factors. If you encounter this problem, here are some possible solutions:

  • Restart your PC or sign out and sign back in. This will restart the Application Frame Host process and may fix the problem.
  • Update your Windows 10 system to the latest version. Microsoft may have released patches or fixes for this issue.
  • Run a virus scan using reliable antivirus software. Although Application Frame Host is a legitimate system file, some malware programs may disguise themselves as this file to avoid detection.
  • Disable unnecessary UWP apps from running in the background. Some UWP apps may run in the background even when you are not using them and consume CPU and memory resources. You can disable them from Settings > Privacy > Background apps.
  • App compatibility issues. Some UWP apps may not be optimized for your system or have compatibility issues, causing the Application Frame Host to consume more CPU resources.

Is Application Frame Host a Virus?

Application Frame Host is a legitimate Windows 10 process and is not a virus. However, malware creators sometimes disguise their malicious software under similar file names to evade detection.

If you’re concerned about the legitimacy of the ApplicationFrameHost.exe process running on your system, you can check its file location by right-clicking the process in Task Manager and selecting “Open file location.” The genuine Application Frame Host should be located in the C:\Windows\System32 folder.

Can I turn off Application Frame Host?

It’s generally not recommended to turn off Application Frame Host, as it’s a critical component for managing UWP apps on Windows 10. Disabling it may lead to an unstable user experience or prevent UWP apps from functioning correctly.

However, if you’re experiencing issues with Frame Host using excessive CPU resources, you can try the following steps to resolve the problem:

  • Close any unused UWP apps to free up system resources.
  • Update your UWP apps and Windows 10 to the latest version to ensure compatibility and optimal performance.
  • Restart the Application Frame Host process by right-clicking it in Task Manager and selecting “End task.” This may help resolve any temporary glitches affecting the process.

If you still experience issues after trying these steps, consider seeking assistance from Microsoft Support or a knowledgeable professional.


Application Frame Host is a crucial component of Windows 10 that manages UWP app user interfaces, ensuring a consistent experience across devices. While it may occasionally consume considerable CPU resources, it’s typically not a cause for concern. By understanding its role and applying the troubleshooting steps mentioned above when necessary, you can maintain a stable and efficient Windows 10 environment.


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Amy Nicholson
Amy Nicholson
Amy Nicholson is a highly skilled writer with extensive experience in the gaming industry. As an expert in writing for the gaming niche she has a deep understanding of the latest trends technologies and developments in the gaming world.

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