How to Change the Default PDF Reader on Windows

You double-click a PDF expecting it to open in the reader you actually like, and instead Windows launches Microsoft Edge, or an old app you barely remember installing, or a browser tab that makes printing and signing the file harder than it should be. It is one of the most common small frustrations on Windows 10 and Windows 11, and it usually appears right after a Windows update, a new browser install, or setting up a new PC.

The good news is that Windows lets you set the default properly. Confusion comes from the fact that file associations live in several places: the Settings app, the Open With menu, and inside PDF apps themselves. Changing it temporarily does not always make it permanent.

This guide shows the reliable Settings method for Windows 11 and Windows 10, the faster right-click method, how to stop Edge from taking PDFs back, and what to do if your preferred reader does not appear in the list at all.

Quick Answer

On Windows 11, go to Settings > Apps > Default apps, search for .pdf, and choose your preferred reader such as Adobe Acrobat or Foxit. On Windows 10, go to Settings > Apps > Default apps > Choose default apps by file type, find .pdf, and select the app. Alternatively, right-click any PDF, choose Open with > Choose another app, select your reader, and tick Always use this app.

Method 1: Change the Default in Settings on Windows 11

This is the most reliable method on Windows 11 because it writes the association directly for the .pdf file type, rather than relying on a one-off open prompt.

1. Click the Start button and open Settings, or press Windows key + I.
2. In the left sidebar, click Apps.
3. Click Default apps.
4. In the search box labelled “Set a default for a file type or link type”, type .pdf including the dot.
5. Click the current default shown under .pdf. In many cases it will say Microsoft Edge.
6. From the list that appears, select the reader you want, for example Adobe Acrobat, Foxit PDF Reader, SumatraPDF, or another installed app.
7. Click Set default to confirm.
8. Find any PDF on your computer and double-click it to confirm it now opens in the app you chose.

Method 2: Change the Default in Settings on Windows 10

Windows 10 hides the same setting one level deeper, which is why many people never find it.

1. Press Windows key + I to open Settings.
2. Click Apps, then click Default apps in the left menu.
3. Scroll down and click the link Choose default apps by file type.
4. Wait for the long alphabetical list to load, then scroll down to .pdf.
5. Click the app currently shown on the right side of the .pdf row.
6. Select your preferred reader from the “Choose an app” pop-up.
7. Close Settings and test by double-clicking a PDF file.

If Windows shows a message saying an app caused a problem with the default app setting, it has reset the association, usually to Edge. Simply repeat the steps above after installing any pending Windows updates, and the choice normally sticks the second time.

Method 3: Use the Right-Click Open With Menu

If you only have one PDF handy and want the fastest route, the context menu works on both Windows 10 and 11, provided you tick the “always” option. Without that tick, you are only changing how that one file opens this one time.

1. Locate any PDF file in File Explorer or on your Desktop.
2. Right-click the file and hover over Open with.
3. Click Choose another app. On Windows 11 you may need to click Show more options first to see the full classic menu.
4. Select your preferred reader from the list. If it is not listed, scroll down and click More apps or Choose an app on your PC and browse to its program file.
5. Tick the box labelled Always use this app to open .pdf files on Windows 10, or click Always on Windows 11.
6. Click OK. The file opens, and the default is now changed for all PDFs.

Microsoft documents these association settings in its guidance on Microsoft Support for changing default apps in Windows, which also covers defaults for email, browsers, and photo viewers if you want to tidy those up at the same time.

How to Stop Microsoft Edge From Taking PDFs Back

Edge is a perfectly capable PDF viewer for quick reading, and it can even fill simple forms. The annoyance is that Windows treats it as the factory default, and some major feature updates quietly restore it. There are two defences.

First, set your reader using the Settings method and restart the PC once to prove the choice survives a reboot. Second, if you use Adobe Acrobat, go to Menu > Preferences > General and click Select as Default PDF Handler. Other readers have a similar “Make default” option in their preferences.

Do not uninstall Edge to solve this. Edge is built into Windows, is needed by other system features, and removing it through unofficial tools can break updates. Changing the default properly is safer and takes a minute.

What If Your Reader Does Not Appear in the List?

Sometimes you install a reader and Windows simply does not offer it as a choice. Work through these checks in order:

1. Confirm the app is actually installed: Open the Start menu and search for the reader by name. If it does not launch, reinstall it from the publisher’s official website.
2. Browse for the program manually: In the Open With dialog, choose “Choose an app on your PC” and navigate to the program’s .exe file, commonly inside C:\Program Files or C:\Program Files (x86) under the publisher’s folder.
3. Check for a portable version: Portable apps that were never installed sometimes cannot register as defaults until you run them once as administrator and use their own “set as default” option.
4. Repair the app: Go to Settings > Apps > Installed apps, find the reader, click the three-dot menu, and choose Modify or Repair if offered.
5. Try setting it from inside the app: Most dedicated readers can register themselves from their own preferences screen, which succeeds in cases where the Settings list is stubborn.

If only Edge appears, run sfc /scannow in an administrator Terminal to repair file associations, then repeat the Settings steps.

Choosing a Reader Worth Setting as Default

Pick the reader that matches how you use PDFs. Edge and Chrome are fine for reading attachments. Adobe Acrobat Reader is safest for forms and digital signatures. Foxit and PDF-XChange Editor suit heavy annotators, while SumatraPDF is very light for older laptops. You can change your choice at any time using the same steps.

You will find more Windows fixes written in this same practical style in NetworkUstad’s Windows and software tutorials, including help with file associations, default browsers, and everyday Office problems.

Common Mistakes to Avoid

• Forgetting the “Always” option: Opening a file once with a new app does not change the default. Always tick “Always use this app” or use the Settings method.
• Changing the browser default instead of the PDF default: Your default web browser and your default PDF reader are separate settings. Changing one does not change the other.
• Downloading readers from random sites: Fake PDF reader downloads are a common source of bundled adware. Only download from the publisher’s official site or the Microsoft Store. Background on why PDF handling matters for security is covered in Wikipedia’s overview of the PDF format.
• Assuming the setting failed when only the icon looks old: File icons sometimes take a few seconds to refresh, or need File Explorer restarted. Test by actually opening the file, not by judging the icon alone.
• Setting the default while the reader is mid-update: Finish installing or updating the reader first, then set the association, otherwise Windows may point at a version that is about to be replaced.

Conclusion

Changing the default PDF reader on Windows takes less than two minutes when you use the right screen: Settings > Apps > Default apps, then set the app for the .pdf file type. The right-click Open With method works just as well if you remember the Always option. Set it once, restart to confirm it sticks, and set your reader to defend its own default setting if it offers that option. From then on, every PDF you double-click will open where you expect it to.

Frequently Asked Questions

Why does Windows keep switching my PDF reader back to Edge?

Major Windows feature updates and some app repairs reset file associations to Microsoft defaults. Set the association again through Settings after an update, restart the PC, and enable your reader’s own “make default” option so it can alert you if the setting changes again.

Can I use different PDF readers for different files?

Windows only allows one default per file type, but you can open any individual PDF in another app at any time by right-clicking it and using Open With without ticking the Always box. That one-off choice does not affect the default.

Is Microsoft Edge a safe PDF reader?

Yes, Edge’s built-in PDF viewer is safe for everyday reading and basic form filling, and it is kept updated with Windows. Dedicated readers are mainly better for advanced editing, signing, measuring, and accessibility features, not basic safety.

How do I change the default PDF reader on a Mac instead?

Right-click a PDF, choose Get Info, select your app under “Open with”, then click Change All and confirm. That is the macOS equivalent of the Windows Settings method described in this guide.

My PDF still opens in Chrome even after I changed the setting. Why?

That usually means the file is a link inside Chrome rather than a downloaded file, so Chrome’s own viewer handles it. Download the file first, then open it from File Explorer, and it will use your Windows default. You can also disable Chrome’s PDF viewer in Chrome’s site settings.