Download the wallpaper pack from the Microsoft Store, then open and set the images as your desktop wallpaper through the Personalization settings.

The app provides a set of 10 premium images; you can select your favorite images by right-clicking each and choosing 'Set as Desktop Background.'

It offers 10 high-quality 4K images to transform your desktop, creating a relaxing travel atmosphere from Mexico to the Maldives.

Currently, the app provides a fixed set of 10 images; updates may be available through app updates or releases, check the store for latest versions.

Right-click an image within the app or folder, then select 'Set as Desktop Background' to apply it immediately.

No, 'Sun and Sand' is free for Windows 10 Themes; all 10 premium images are available at no cost.

Yes, uninstall the app via Settings > Apps > Sun and Sand, and your current wallpaper will remain unchanged unless you reset it manually.

Try restarting your computer, ensuring the images are properly saved, or reinstall the app from the Microsoft Store.