Windows 11 desktop background slides cannot be switched automatically, so you can try the following solutions in turn: 1. Check whether the settings are "Slide Show" and confirm that the time interval is correct with the picture path; 2. Use a simple path (such as C:\Wallpapers) and make sure the picture format is JPG or PNG; 3. Restart Explorer, run a command prompt, or delete the cache file to rebuild the cache; 4. Update the system to the latest version and close the third-party wallpaper software to troubleshoot compatibility issues. Most problems arise from setting exceptions or cache corruption, and troubleshooting according to the steps can usually be solved.

There is a problem with the desktop background slide function of Windows 11, which is really a headache. The most direct manifestation is that the wallpaper does not switch automatically, or only displays one picture, and no matter how it is set, it will not respond. This problem may be related to system settings, file paths, and even system versions.

The following common causes and solutions are all easier to check and repair in practice. You can try them one by one.

1. Check whether the slide settings are correct

Many people encounter problems, but they are just setting up and not adjusting correctly. Open Settings > Personalization > Background to confirm the following:

• The background type is "Slideshow" (Slideshow)
• The time interval is set reasonably (such as changing one every 30 minutes)
• The folder path from the wallpaper is correct, and there are multiple pictures in the folder

Sometimes after the system is updated, the settings will automatically change back to the default state, especially when switching from "picture" to "slide".

2. Ensure that the wallpaper folder path is valid

The slide function of Windows 11 has requirements for picture paths. If you specify a folder yourself, but the slideshow doesn't work, it may be that something is wrong with the path:

• The folder should not be too deep (such as nesting too many layers)
• There cannot be Chinese or special characters in the path (some users have reported this problem)
• If the image format is supported by the system (such as JPG, PNG)

You can try to put the picture in a simple path, such as C:\Wallpapers , and then reset the slide path.

3. Reset or rebuild the slide cache

The system will cache some data when switching wallpapers, and if the cache is corrupted, the slideshow will also fail. You can try to fix it by:

• Open Task Manager, find "Windows Explorer", right-click and select "Restart"
• Or run the command prompt (administrator) to execute:

   ie4uinit.exe -ClearIconCache

• You can also manually delete the cache folder:
  • Enter C:\Users\你的用戶名\AppData\Local\Microsoft\Windows\Explorer
  • Find files like thumbcache_xxx.db , delete them and restart Explorer

4. Update the system or check for compatibility issues

Some users reported that there were bugs in the slideshow function in older versions of Windows 11. If you haven't updated the system for a long time, it is recommended to check:

• Open Settings > Windows Update to see if there are any updates to be installed
• If it is a preview system, there may be known problems in itself

In addition, if you are using third-party wallpaper software (such as Wallpaper Engine), it may conflict with the system's own slideshow function. You can try to temporarily close these software to see if there is any improvement.

Basically, these common investigation directions are all about this. In many cases, the settings are changed or there is a problem with the cache, so don't worry too much. When you encounter problems, you can take it step by step, first confirm the path and then reset the cache, which can generally be solved.

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