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How to Fix Dark Mode Not Working or Inconsistent on Windows

Windows dark mode not applying to all apps, dark mode switching back to light, or some windows staying white? Fix dark mode for system, apps, File Explorer, and third-party programs.

Symptoms

You might be experiencing this problem if you notice:

  • •Dark mode enabled but some apps still show light theme
  • •File Explorer stays white despite dark mode being on
  • •Dark mode switches back to light after restart
  • •Settings app is dark but other Windows apps are light
  • •Dark mode toggle has no effect
  • •Taskbar is dark but windows are light (or vice versa)

Common Causes

  • ⚠Separate toggles for "Windows mode" vs "App mode" not both set
  • ⚠Third-party theme or customization tool overriding settings
  • ⚠Registry values for theme not matching Settings app
  • ⚠Corrupted user profile theme cache
  • ⚠Scheduled light/dark toggle (night-time auto-switch) conflicting
  • ⚠Some apps ignore system theme and need manual dark mode setting

Solutions

Solution 1: Set Dark Mode for Everything

  1. 1Go to Settings > Personalization > Colors
  2. 2Set "Choose your mode" to "Dark" (this sets both Windows and app mode)
  3. 3Or choose "Custom" to set Windows mode and App mode separately
  4. 4For full dark: set both to "Dark"
  5. 5Scroll down and optionally set accent color
  6. 6Changes should apply immediately to all supported apps

Solution 2: Fix Dark Mode Not Sticking

  1. 1If dark mode reverts after restart:
  2. 2Open Registry Editor (regedit)
  3. 3Navigate to HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize
  4. 4Set "AppsUseLightTheme" to 0 (dark) or 1 (light)
  5. 5Set "SystemUsesLightTheme" to 0 (dark) or 1 (light)
  6. 6Check for any third-party app (Auto Dark Mode, wallpaper engine) that might be toggling themes

Solution 3: Fix Specific Apps Not Following Dark Mode

  1. 1File Explorer: should follow system theme automatically — if not, restart Explorer (Task Manager > Restart)
  2. 2Office apps: File > Account > Office Theme > "Dark Gray" or "Black"
  3. 3Chrome: Settings > Appearance > or use chrome://flags > "Auto Dark Mode for Web Contents"
  4. 4Edge: Settings > Appearance > choose "Dark"
  5. 5Some legacy apps (Notepad old version, Control Panel) never support dark mode
  6. 6Consider using Windows 11 which has better dark mode coverage
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