The Microsoft Edge browser is the default app for PDF files on Windows PCs. However, you can easily change your default PDF viewer to Adobe’s Acrobat Reader DC for files saved to your Windows PC.

On Windows 11, you can change the default browser to any application you want, and in this guide, I'll explain how to use the easiest steps.

If you can't change default app by file type in Windows 11/10, then reset the problematic app, remove file type association, etc.

Windows doesn’t always “just work" — but with a little touch of tinkering, you can fix most of its unfortunate choices.

Microsoft is now using a Windows driver to prevent users from changing the configured Windows 10 and Windows 11 default browser through software or by manually modifying the Registry.