Resetting Default App Settings: Complete Guide for Windows 11 & Windows 10

You double‑click a PDF. It opens in a browser instead of Adobe Acrobat. You click an MP3. It opens in a video player instead of your music app. You open an HTML file. It shows up in Notepad instead of your browser.

This happens to thousands of Windows users every day. The default app settings get messed up. Files open in the wrong applications. The “Always use this app” choice gets ignored. The “Pick an app” pop-up appears for every single file.

I have helped thousands of users fix this problem. You can fix it too. This guide covers everything you need to know about resetting default app settings in Windows 11 and Windows 10. I will show you the easy methods and the advanced methods. I will also explain exactly what the reset button does and what it does not do.

Important: This guide covers both Windows 11 and Windows 10. The steps are different for each version. Make sure you follow the correct section for your Windows version.

What Does “Reset Default App Settings” Actually Do?

Many users are confused about the reset button. They click it expecting one thing. They get something else.

The reset button does not delete your files. It does not uninstall your apps. It does not reset your personal settings.

Here is exactly what the reset button does and does not do.

What Gets Reset

The reset button resets file associations. This means it changes which app opens each file type.

It resets protocol handlers. This affects links like mailto, http, and ftp.

It restores the Microsoft recommended defaults. This means it sets the default apps to what Microsoft recommends.

For example, in Windows 11, Microsoft Edge becomes the default for PDF files. Photos becomes the default for image files.

What Does NOT Get Reset

The reset button does not affect your personal app settings. Your browser bookmarks remain intact. Your saved passwords are not deleted.

Your app data and user files are not touched. Your documents, photos, and music stay where they are.

Installed applications are not uninstalled. The reset button only changes which app opens which file type.

Third‑party app preferences are not changed. For example, if you customized Adobe Acrobat settings, they remain unchanged.

What Gets Reset	What Does NOT Get Reset
File associations (.pdf, .jpg, .mp3, .docx, .html)	Personal app settings and preferences
Protocol handlers (mailto, http, ftp)	Browser bookmarks and saved passwords
Default apps for file types	App data and user files
Microsoft recommended defaults	Installed applications
File type associations	Third‑party app custom settings

Why Windows Updates Can Reset Your Defaults

Windows feature updates sometimes reset default app settings. This is a known behavior.

Microsoft does this to ensure compatibility with new features. The updates may change how certain file types are handled.

For example, a Windows 11 feature update might reset PDF associations to Microsoft Edge. This is intentional. Microsoft wants users to use their apps.

You can prevent this from happening. After you set your preferred defaults, you can export the configuration. I will show you how to do this using DISM.

Pro tip: After you configure your default apps, export the settings using DISM. This way, you can quickly restore them if a Windows update resets everything.

Before You Start: Important Things to Know

There are some important things you need to know before you start resetting your default apps.

These things explain why some methods do not work. They explain why your defaults might keep reverting.

Read this section carefully. It will save you time and frustration.

The UserChoice Hash Protection (Why Registry Edits Fail)

Many online guides tell you to edit the registry to reset default apps. This method does not work on current Windows builds.

Microsoft added hash protection to the UserChoice registry key. This happened in Windows 10 and continues in Windows 11.

The UserChoice key stores your default app associations. The hash is a cryptographic signature. It validates the key.

If you edit the UserChoice key directly, the hash becomes invalid. Windows ignores your change. It reverts to the previous setting.

This is why registry edits for default apps often fail. Users waste time on methods that no longer work.

Critical warning: Registry edits for default apps often fail on current Windows 10 and Windows 11 builds. Microsoft added hash protection to the UserChoice key. Editing it directly does not work. I cover this in more detail in the registry section.

The only reliable ways to change default apps are through the Settings app or using DISM with properly formatted XML files.

Per-User vs System‑Wide Defaults

Default app settings are stored per‑user. This means each user account on a device has its own default app settings.

When you reset default apps, you are resetting settings for your user account only. Other users on the device are not affected.

System‑wide defaults exist as a fallback. They apply when a user has not made their own choices. But user‑specific settings override system‑wide settings.

This distinction matters for managed devices. System administrators can set system‑wide defaults using Group Policy or MDM.

Also Read: Camera App Permission

What If Your Device Is Managed by Work or School?

If your device is managed by your work or school, Group Policy or MDM may override your default app settings.

This means you might not be able to change certain default apps. The policy overrides your choices.

For example, your IT department might force Microsoft Edge as the default browser. You cannot change this setting.

If you cannot change your default apps and your device is work‑managed, contact your IT support team. They can help you.

Important: On work- or school-managed devices, Group Policy or MDM settings may prevent you from changing default apps. The reset button might be grayed out or have no effect. Contact your IT support team for assistance.

Method 1: Reset All Default Apps via Settings (Windows 11)

This is the easiest method. It works for most users. The Settings app in Windows 11 has a reset button.

It resets all default app associations to the Microsoft-recommended defaults.

Here is how to do it step by step.

Step‑by‑Step Instructions

1. Open Settings

Press the Windows + I keys on your keyboard. This opens the Settings app.

2. Go to Apps

In the Settings window, click on Apps in the left sidebar.

3. Click on Default Apps

In the Apps section, click on Default apps. This opens the default apps settings page.

4. Scroll to the Bottom

Scroll down to the bottom of the Default apps page. You will see a section labeled “Reset to the Microsoft recommended defaults”.

This section has a Reset button.

5. Click the Reset Button

Click the Reset button. A confirmation dialog will appear.

6. Confirm the Reset

In the confirmation dialog, click Reset again. Windows will reset all default app associations.

This process takes a few seconds.

7. Close Settings

Close the Settings app. Your default apps have been reset to the Microsoft recommended defaults.

What to Expect After Clicking Reset

After you click Reset, Windows restores the default app associations. All file types return to their Microsoft-recommended apps.

PDF files will open in Microsoft Edge. Image files will open in the Photos app. Music files will open in Windows Media Player.

You can then manually change individual file types back to your preferred apps. This is easier than fixing every file type one by one.

The reset button does not affect your personal files. Your documents, photos, and music remain intact.

Resetting Individual File Types (Not Everything)

You do not have to reset everything. You can reset a single file type.

This is useful if only one file type is misbehaving. For example, if only PDF files open in the wrong app.

Here is how to reset a single file type.

1. Open Settings (Windows + I).
2. Go to Apps → Default apps.
3. Scroll down to the “Choose defaults for file types” section.
4. Find the file extension you want to reset. For example, .pdf.
5. Click the current default app next to the file type.
6. Select the app you want to use. Or choose “Look for another app on this PC” to find a specific program.
7. The new default app is now set for that file type.

Pro tip: If you are not sure which app to choose, select “Look for another app on this PC” and navigate to the program’s executable file. For example, for Adobe Acrobat, look for Acrobat.exe in the Program Files folder.

Method 2: Reset All Default Apps via Settings (Windows 10)

Windows 10 also has a reset button. It works similarly to Windows 11. But the interface is slightly different.

Here is how to reset default apps in Windows 10.

Step‑by‑Step Instructions

1. Open Settings

Press the Windows + I keys on your keyboard. This opens the Settings app.

2. Go to Apps

In the Settings window, click on Apps.

3. Click on Default Apps

In the Apps section, click on Default apps from the left sidebar. This opens the default apps settings page.

4. Scroll to the Bottom

Scroll down to the bottom of the Default apps page. You will see a section labeled “Reset to the Microsoft recommended defaults”.

This section has a Reset button.

5. Click the Reset Button

Click the Reset button. A confirmation dialog will appear.

6. Confirm the Reset

In the confirmation dialog, click Reset again. Windows 10 will reset all default app associations.

7 Close Settings

Close the Settings app. Your default apps have been reset to the Microsoft recommended defaults.

Windows 10 vs Windows 11 — Key Differences

The reset button works similarly in both versions. But there are some key differences.

In Windows 10, you can set defaults by app. You can choose which app handles all file types for a specific app.

In Windows 11, this feature is limited. You must set defaults per‑file‑type. This is a major change introduced in Windows 11 22H2.

The interface is also different. Windows 11 has a centered, rounded design. Windows 10 has a traditional left sidebar layout.

Windows 11

• Centered UI with rounded corners
• Per‑file‑type default setting only
• Reset button at the bottom of the page
• Designed for touch and mouse

Windows 10

• Traditional left sidebar layout
• Per‑app default setting available
• Reset button at the bottom of the page
• Optimized for mouse and keyboard

Method 3 — Reset File Associations Using the Registry (Advanced)

This method is for advanced users. It involves editing the Windows Registry.

Editing the registry can be risky. A mistake can cause system problems. Proceed with caution.

I also need to warn you about an important issue. Registry edits for default apps may not work on current Windows builds.

Warning — This May Not Work on Current Windows Builds

Microsoft added hash protection to the UserChoice registry key. This started with Windows 10 and continues in Windows 11.

The UserChoice key is located at: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.ext\UserChoice

When you change the value in this key, the hash becomes invalid. Windows detects the invalid hash and ignores your change.

This means registry edits for default apps often fail on current builds. Users waste time on methods that no longer work.

Critical warning: Registry edits to the UserChoice key often fail on Windows 10 and Windows 11 build 22H2 and later. Microsoft added hash protection. Editing the key directly does not change the default app. Use the Settings app instead.

If you still want to try the registry method, here is how to do it. But be aware that it may not work.

Registry Method for Specific File Types

This method resets a specific file type by deleting its UserChoice subkey.

1. Press Windows + R to open the Run dialog.
2. Type regedit and press Enter. This opens Registry Editor.
3. Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts
4. Find the file extension you want to reset. For example, .pdf.
5. Expand the extension folder. You will see a UserChoice subkey.
6. Right‑click on UserChoice and select Delete.
7. Confirm the deletion.
8. Close Registry Editor and restart your computer.

After restart, Windows will not have a stored preference for that file type. The next time you open that file type, you will be prompted to choose an app.

This method may work on some older builds. But it is not reliable on current builds due to the hash protection.

Registry Method Using .reg Files

You can also use .reg files to reset file associations. A .reg file contains registry entries that you can apply with a double‑click.

Here is an example .reg file that removes the association for PDF files.

Windows Registry Editor Version 5.00

[-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pdf\UserChoice]

To use this method:

1. Open Notepad.
2. Copy the registry code above into Notepad.
3. Save the file with a .reg extension. For example, reset-pdf.reg.
4. Double‑click the .reg file.
5. Confirm the registry import.
6. Restart your computer.

Important: .reg files modify the registry directly. A mistake can cause system issues. Always back up your registry before applying .reg files. And remember, this method may not work on current Windows builds due to the UserChoice hash protection.

Method 4 — Export and Import Default App Associations (IT/Admin)

This method uses DISM (Deployment Imaging Service and Management Tool). It is designed for IT administrators and advanced users.

DISM can export default app associations to an XML file. You can then import this file on another computer. This is useful for deploying consistent defaults across multiple machines.

You can also use DISM to reset all default app associations to the Microsoft recommended defaults.

Export Default App Associations with DISM

Exporting saves your current default app settings to an XML file. You can then import this file on other computers.

1. Open Command Prompt as Administrator. Press Windows + X and select Terminal (Admin) or Command Prompt (Admin).
2. Type the following command and press Enter:

dism /online /Export-DefaultAppAssociations:"%UserProfile%\Desktop\DefaultAppAssociations.xml"

This command exports the default app associations to an XML file on your desktop. You can change the file path to any location you prefer.

The XML file contains all your default app associations. You can open it in Notepad to view the settings.

Import Default App Associations with DISM

Importing applies the default app settings from an XML file. This is useful for restoring a known good configuration.

1. Open Command Prompt as Administrator.
2. Type the following command and press Enter:

dism /online /Import-DefaultAppAssociations:"%UserProfile%\Desktop\DefaultAppAssociations.xml"

This command imports the default app associations from the XML file on your desktop. Make sure the file exists and is valid.

Reset Default App Associations with DISM

You can also reset all default app associations to the Microsoft recommended defaults using DISM.

1. Open Command Prompt as Administrator.
2. Type the following command and press Enter:

dism /online /Remove-DefaultAppAssociations

This command removes all user‑defined default app associations. Windows reverts to the Microsoft recommended defaults.

Important: The /Remove-DefaultAppAssociations command removes all custom default app settings. Use this command with caution. It is a permanent change. You will need to reconfigure your default apps manually after running this command.

Method 5: Reinstall Built‑in Apps with PowerShell

Sometimes default apps break because the built‑in apps are corrupted. This can happen after a Windows update or system error.

Reinstalling the built‑in apps can fix the problem. This method uses PowerShell to reinstall all built‑in Windows apps.

Step‑by‑Step PowerShell Instructions

1. Open PowerShell as Administrator. Press Windows + X and select Terminal (Admin) or Windows PowerShell (Admin).
2. Type the following command and press Enter:

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

This command reinstalls all built‑in Windows apps for all users. It registers each app’s manifest file.

The process may take a few minutes. You will see some errors for apps that are not installed or have missing manifests. This is normal.

After the command finishes, restart your computer. The built‑in apps should be reinstalled and their default associations restored.

When to Use This Method

Use this method if the Settings app reset does not work. Also use it if built‑in apps like Photos, Media Player, or Notepad are missing or broken.

This method is especially useful after a major Windows update. Updates can sometimes corrupt built‑in apps.

It is also useful if you have accidentally uninstalled a built‑in app. PowerShell can reinstall it.

Pro tip: Before running the PowerShell command, make sure you have a stable internet connection. Some apps may need to download additional files from the Microsoft Store.

Troubleshooting — What to Do If the Reset Doesn’t Work

Sometimes the reset process does not work as expected. Here are the most common issues and their solutions.

The Reset Button Is Grayed Out or Missing

If the reset button is grayed out, Group Policy may be blocking it. This is common on work or school-managed devices.

Check with your IT administrator. They can change the policy or help you reset the defaults.

If you are not on a managed device, try running the Settings app as administrator. Right‑click the Settings shortcut and select “Run as administrator”.

Default Apps Keep Reverting After Reset

If your defaults keep reverting after you reset them, Windows Update may be the cause.

Feature updates often reset default associations. This is intentional. To prevent this, export your settings using DISM and import them after each update.

You can also postpone feature updates. But this is not recommended for security reasons.

“Pick an App” Popup Keeps Appearing

If you see the “Pick an app” popup for every file, the file association is missing or corrupted.

First, try resetting the specific file type using the Settings app method. Then, if the popup persists, use the registry method to delete the UserChoice subkey.

If the popup appears for a file type that should have a default app, check if that app is installed. If not, install it and set it as default.

Settings App Won’t Open or Is Blank

If the Settings app does not open, you may need to repair it. Run the System File Checker (SFC) to fix corrupted system files.

Open Command Prompt as Administrator and run: sfc /scannow

After SFC finishes, run DISM to repair the system image: dism /online /cleanup-image /restorehealth

Then restart your computer and try opening Settings again.

File Type Has No Association at All

If a file type has no association, Windows will always ask “How do you want to open this file?”

You can assign an association manually. Right‑click the file, select “Open with”, then “Choose another app”. Select the app you want and check “Always use this app”.

If the app is not listed, click “Look for another app on this PC” and navigate to the program’s executable file.

Windows 11 vs Windows 10 — Comparison Table

Feature	Windows 11	Windows 10
Settings path	Settings > Apps > Default apps	Settings > Apps > Default apps
Reset button label	Reset to the Microsoft recommended defaults	Reset to the Microsoft recommended defaults
Individual file type reset	Yes (scroll to extension)	Yes (scroll to extension)
Per‑app default setting	Limited (per‑file‑type only)	Available
UI difference	Centered, rounded corners	Traditional left sidebar

Methods Comparison

Method	Difficulty	OS Support	Best For
Settings app (reset all)	Easy	Windows 11, 10	Most users
Settings app (individual)	Easy	Windows 11, 10	Single file type fix
Registry (UserChoice delete)	Advanced	Windows 11, 10	Advanced users (may not work)
Registry (.reg file)	Advanced	Windows 11, 10	Advanced users (may not work)
DISM export/import	Advanced	Windows 11, 10	IT/Admin, multiple machines
PowerShell reinstall	Intermediate	Windows 10	Missing built‑in apps

Troubleshooting Quick Reference

Problem	Solution
Reset button grayed out	Check Group Policy, run Settings as admin
Defaults keep reverting	Check Windows Update, create restore point
“Pick an app” popup	Identify trigger, reset associations, run SFC/DISM
Settings won’t open	Run Settings via command, system restore
File type has no association	Assign manually, check registry

Frequently Asked Questions About Resetting Default App Settings

What happens when you reset default apps in Windows 11?

It resets all file associations and protocol handlers to the Microsoft recommended defaults. Personal files, browser bookmarks, and app settings are not affected.

Will resetting default apps delete my personal files?

No. The reset only changes file associations. Your documents, photos, music, and other personal files remain untouched.

How do I reset default apps in Windows 10?

Open Settings > Apps > Default apps, scroll down and click the Reset button under “Reset to the Microsoft recommended defaults”.

Why do my default apps keep resetting after Windows Update?

Windows feature updates often reset default associations to ensure compatibility. Export your settings with DISM to restore them quickly after updates.

Can I reset default apps using Command Prompt?

Yes, you can use DISM commands: dism /online /Remove-DefaultAppAssociations resets all associations. You can also export/import with DISM.

How do I undo “Always use this app to open”?

Go to Settings > Apps > Default apps, scroll to the file type, click the current default app and select a different one. Or use the registry method to delete the UserChoice subkey.

What is the UserChoice hash protection?

It is a security feature added by Microsoft that validates the UserChoice registry key. Editing the key directly invalidates the hash, so Windows ignores the change.

How do I reset a single file type without resetting everything?

Go to Settings > Apps > Default apps, scroll to the file type, click the current default app, and choose a new app. Or use the registry to delete the UserChoice subkey for that extension.

Will resetting default apps affect my browser bookmarks?

No. Browser bookmarks and saved passwords are stored separately. Resetting default apps only changes file associations.

How do I reset default apps on a work‑managed device?

Group Policy or MDM may override your settings. Contact your IT administrator for assistance.

What’s the difference between Windows 10 and Windows 11 default app settings?

Windows 11 limits default app setting to per‑file‑type only, while Windows 10 also allows setting defaults by app. The UI is also different.

How do I export my default app settings to use on another computer?

Use DISM to export: dism /online /Export-DefaultAppAssociations:”path\file.xml”. Then import on the other computer with dism /online /Import-DefaultAppAssociations:”path\file.xml”.

Final Verdict: Should You Reset Your Default App Settings?

Axee’s Take

I have helped thousands of users fix misbehaving file associations. Here is my honest verdict.

Reset your default apps if:

• Files keep opening in the wrong applications.
• The “Pick an app” pop-up appears for every file.
• You want to restore the Microsoft-recommended defaults.
• You are comfortable using the Settings app.

Do NOT reset if:

• Your device is managed by work or school and policies block changes.
• You have customised many default apps and do not want to lose them.
• You are not comfortable with the risk of registry edits (stick to Settings).

Bottom line: The reset button in Settings is safe and effective. It fixes most default app problems quickly. If you need advanced management, use DISM for exporting/importing configurations.

If you follow the steps in this guide, you will have your default apps working correctly within minutes.

Disclaimer: This article is for informational purposes only. Registry edits can be risky. Always back up your registry before making changes. For managed devices, consult your IT administrator.