Windows · System
Manage Default Apps
Default Apps settings let you choose which application opens specific file types and links by default, such as your browser, email client, photo viewer, or music player.
How to open Default Apps
- Open Settings → Apps → Default apps.
- Search for the app you want to set as default.
- Assign it to the relevant file types or links.
- Use 'Reset' to restore Microsoft-recommended defaults if needed.
What you should know
- Set a default web browser, email client, and media player.
- Assign default apps for specific file extensions (e.g. .pdf, .jpg).
- Reset all defaults to the Microsoft-recommended settings if needed.
- Some apps may prompt you to set them as default during installation.
Changing your default browser or email client may affect how links and attachments open across other apps on your system.
Why it matters
Default app associations decide which program actually opens when you click a link, open an email attachment, or double-click a photo, so getting them right saves you from repeatedly redirecting files to the app you actually meant to use. This is especially relevant right after installing a new browser, PDF reader, or media player, since many apps don't automatically become your default without an explicit change here. Misconfigured defaults are also a common source of confusion when opening links from other apps unexpectedly launches the wrong program.
Best practices
- Set your default browser explicitly after installing a new one, since installation alone doesn't always make it the system default.
- Assign default apps by file type, like .pdf or .jpg, individually if you want different apps for different formats rather than one blanket browser default.
- Use the 'Reset' option if defaults become inconsistent after installing multiple similar apps, such as several PDF readers.
- Check default apps again after major Windows updates, since some updates have reset custom defaults back to Microsoft's recommendations.
Common problems and fixes
- Links keep opening in Microsoft Edge instead of your preferred browser.
- Go to Settings → Apps → Default apps, search for your browser, and manually assign it to both the .htm/.html file types and the HTTP/HTTPS protocols.
- A newly installed app doesn't appear as an option for its file type.
- Confirm the app was installed correctly and registered its file associations, then manually search for it under Default apps rather than relying on an install-time prompt.
- PDF files open in the wrong reader after installing a new PDF app.
- Search for '.pdf' specifically under Default apps → 'Choose default apps by file type' and select your preferred reader there.
Tips and tricks
- Use 'Set defaults by app' when you want one app to claim every file type and link it commonly supports in a single click, instead of configuring each extension manually.
- Check 'Choose default apps by file type' directly if a specific extension keeps opening in the wrong program.
- After changing a default browser, also verify PDF association separately if that browser doubles as a PDF viewer, since it can silently take over .pdf files too.
Frequently asked questions
Why didn't my new browser become the default automatically?
Windows requires an explicit user confirmation to change default apps for security and consistency reasons, so most installers can only prompt you rather than silently changing the default.
What happens if I click 'Reset' next to an app in Default apps settings?
It removes that specific app's default assignments and reverts affected file types and links back to Microsoft's recommended defaults, such as Edge for browsing and Photos for images.
Can I set different apps as default for different file types within the same category?
Yes, for example you can set one video player as default for .mp4 files and a different one for .mkv files by configuring each extension individually.
Related settings
- Display SettingsDisplay settings allow you to adjust screen resolution, brightness, scaling, and multiple monitor configurations. Proper display configuration improves visual clarity and productivity.
- Windows UpdateWindows Update allows you to download and install the latest security patches, feature updates, and performance improvements. Keeping your system updated helps protect against vulnerabilities and ensures optimal performance.
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