Fix: “An App Default was Reset” Error in Windows 10

Windows 10 is no usual operating system. After the launch of Windows 10, there is a huge variety of new updates and software available, which makes your PC/laptop faster than before. Even with new features and updates Windows 10 still has some cons.

It is found that many users are reporting that when they have updated their Windows 10 from its previous version  a message pops up on their screen that says:

An App default was reset

An app caused a problem with the default app setting for .html files, so it was reset to Microsoft Edge.

Windows updates are not the only cause of this issue, it may occur when no file connection has been set by the user side or when an app damages the User Choice Registry key while setting connections then it reset back to their Windows 10 defaults.

If you are getting worried about how to fix this error in your Windows 10 then, in this article you will find easy solutions to solve the An app default was reset error in Windows 10.

Before discussing the solutions let us find out what does An app default was reset means and alternative solutions for you to fix the error in a simple and effective manner without any hassle.


What does An app default was Reset Windows 10 Means?


An app default was reset in Windows 10 is the normal notifications which pop up in Action Center in Windows 10. It is also a Windows 10 Update KB3135173 error. This error resets the default application on the system on which it is installed.



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Methods to fix An App Default was Reset Error in Windows 10


There are various solutions provided below for you to get rid of Windows 10 An app default was reset error. So check them out one by one.


Solution 1: Remove the in-built Apps with the Command Lines


Windows 10 usually resets its default app automatically to its in-built applications such as images app, video, and audio apps. You can eliminate the three in-built apps from Windows 10 in order to avoid the pop-ups message of “an app default was reset” on your system. Follow the steps given below to perform the command in Windows PowerShell:

Step 1: Click on the Windows icon.

Step 2: Type Windows PowerShell and press Enter

Step 3: A blue screen will appear now, type the following commands one after the another given below and press enter:

  • get-appxpackage *zunevideo* | remove-appxpackage
  • get-appxpackage *zunemusic* | remove-appxpackage
  • get-appxpackage *photos* | remove-appxpackage

You can also uninstall unused Windows 10 in-built apps. After removing the apps check whether the error is fixed or not.

After that you can restore the apps back, you just need to type the commands stated below in the Windows Powershell :

Get-AppxPackage -AllUsers| Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}


Solution 2: Uninstall Programs or Uninstall Windows Updates


If the continuous app default reset occurs after you have installed some new software, applications, programs or Windows updates, then it is suggested you uninstall them in order to fix the problem. In the control panel go to the Programs and Features or to Windows Settings to get away the programs.

Uninstall Programs

  1. Press Windows + R key to launch the Run.
  2. Type appwiz.cpl in the box.
  3. Click OK.
  4. Right-click on the software or the program that you have installed recently.
  5. Select Uninstall.

Sometimes it happens when you are not able to uninstall a program and remove leftover files of deleted programs.

Get RevoUninstaller to uninstall program


Uninstall Windows Updates

  1. Open the Settings.
  2. Go to the Update & security menu.
  3. Choose the Windows Update tab on the left pane.
  4. Click the Update history on the right side.
  5. Check the latest updates that cause the “an app default was reset” issue and uninstall them.

Solution 3: By Uninstalling Responsible Update


This issue may also happen because of Windows 10 Update (KB 3135173). It essentially resets apps defaults to defaults by modifying registry settings or damaging them. Microsoft is well known about this issue, so they are working with app providers to fix this error in future Windows Updates.

Follow the steps to solve the problem:

Step 1: Open Command Prompt with administrator privileges.

Step 2: Type the below-given command and hit the Enter key.

wusa /uninstall/ kb:3135173


Solution 4: Set App Defaults Manually


To set the apps defaults manually follow the steps given below to get rid of app default was reset:

Step 1: Open Settings app àSystem à Default apps.

Step 2: Click on Choose default apps by file type link, present in the right pane of the window.


Step 3: After it, scroll down and find the extension that has the issue. Set the default app by clicking the app name next to it. After doing this, close the Settings app and reboot the system.

Also Read: Top 10 Fixes for 0x8000ffff Error on Windows 10 and 8.1 – Easy to Apply Solutions!




As the manual methods are time-consuming, risky and technical so it will not cover more unless you don’t have excellent computer knowledge. So try the PC repair Tool to solve the problem all at once.

Hope this article turns out to be helpful for you. Do try the above-mentioned solutions to fix “An App Default was Reset” Error in Windows 10.

If you have any question related to this article you can visit our PC Error Ask Question Page.

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Fix: “An App Default was Reset” Error in Windows 10
Looking for the solutions of Windows 10 “An App Default was Reset” Error? Find easy and effective ways to solve the error also get knowledge about what does the error means and its alternative fixes.
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