A blank or default desktop background after login — even though the wallpaper is still set correctly in Settings — is usually a corrupted wallpaper cache rather than a missing file.
Fix 1 — Clear the Wallpaper Cache
- Open File Explorer and navigate to
%AppData%\Microsoft\Windows\Themes. - Delete the TranscodedWallpaper file and the contents of the CachedFiles subfolder.
- Right-click the desktop, choose Personalize, and re-select your wallpaper (or reselect it from Settings > Personalization > Background).
Fix 2 — Confirm the Source File Still Exists
If the wallpaper is set to a specific picture file, check that the file hasn’t been moved, renamed, or deleted — Windows will silently fall back to a black or default background if it can’t find the source image.
Fix 3 — Check for a Slideshow Setting
Under Settings > Personalization > Background, if “Picture” isn’t selected (for example if it’s set to “Slideshow” pointing at an empty or inaccessible folder), the desktop can appear blank. Switching back to “Picture” and selecting a valid image resolves it.
If none of the above helps, running sfc /scannow from an elevated Command Prompt will catch cases where a corrupted system file is involved.
Still Applies on Windows 11 (Updated for 2026)
The same %AppData%\Microsoft\Windows\Themes cache location and clearing steps work identically on Windows 11 — the wallpaper cache mechanism hasn’t changed. If you’re troubleshooting this on a machine that’s still on Windows 10, keep in mind Windows 10 reached the end of free support on 14 Oct 2025; ESU-enrolled devices aren’t affected for this specific issue, but if you’re due an upgrade anyway, the fix carries straight over to Windows 11 with no changes.
Resources

Get the download
Windows 10 Desktop Wallpaper Pack is available as a free download.
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I did all of that but it didn’t work. Black screen of death still there.. Tried to change desktop image but it didn’t catch as well.