On both Windows 10 and 11 PCs, Microsoft Photos is the default app for opening JPG files. So, if there's a problem with this app, it may fail to open any JPG files.

If you want to open JPEG-XL image files on Windows 11, install the JPEG XL Image Extension from Microsoft to enable JPEG-XL support.

Once installed, Windows 11 File Explorer will display previews and thumbnails of JPEG XL files. Users can set JPEG XL images as desktop backgrounds and open them using Windows Media Player Legacy.

On Windows 11, you can change the format of a file in multiple ways through File Explorer, Command Prompt, and from a compatible application. In this guide, I'll show you how.

If you have an AVIF file that’s not opening on your Windows 11/10 PC, you may convert it to another compatible image format, such as PNG or JPG. How to convert AVIF to PNG or AVIF to JPG?