The latest beta version of Windows 10 Build 17666 available to users on the Fast Insiders track, finally brings a dark theme to File Explorer to match the rest of Windows 10’s dark aesthetic. Previously when users enable the Dark mode in Windows 10, its effect was limited to preinstalled apps like Windows Store, Calendar, Mail, and other Universal Windows Platform applications. That means dark mode will have no effect on the File Explorer.
But now with users running Windows 10 Insiders build 17666, enable the dark mode in Settings > Personalization > Colors. Dark Theme. This will be enabled in all support applications and interfaces, including in File Explorer.
How to enable dark mode in Windows 10 File Explorer?
There is no separate option to enable dark theme in File Explore. If you’re running Insider build 17666, turning on Windows 10’s dark theme will enable it across all the apps and system UI that support it, including File Explorer.
If you want to start using the new Dark Theme in File Explorer, make sure you are using the latest Windows Insider build 17666, and then go to Settings > Personalization > Colors. Under Choose your default app mode, click the Dark radio button.
Once you enable the “Dark” option, Windows will automatically enable it and the Dark Theme will be enabled in all support applications and interfaces, including in File Explorer.
Microsoft has also added dark theme support to the File Explorer context menu, as well as the Common File Dialog (aka the Open and Save dialogs). However, the company notes that users might see some unexpected light colors in File Explorer and the Common File Dialog and is working to fix the issue.
As you can see in the screenshot above, the body, right pane and the address bar are black. Again, it’s worth noting that this is an early implementation with some glitches and the UI will be improved to look a lot better by the time Microsoft finalizes the next update for Windows 10.
The File Explorer could be updated in next preview builds with improved Dark Theme and similar changes ahead of the public launch for everyone in the fall. Windows 10 Redstone 5 update is projected to finalize by September and it could be released in October.