Microsoft Windows 10 features a Dark Mode or Theme that is hidden by default, and one can enable this using Settings or a Registry tweak. This tutorial will show you how to turn on the hidden Windows 10 Dark Theme by editing the Windows Registry or Settings app.
Windows 10 comes with many personalization options, and with a minor tweak, you can make it more comfortable for yourself.
Microsoft comes with very appealing and decent colors in the apps provided by default in Windows 10 operating system. In the case of native apps like Settings, Microsoft Edge, etc., there is a light-grey-colored theme in these apps. Here is a preview of the theme:-

However, another theme in the Windows 10 is dark in color but remains hidden by default. Here is the dark theme preview:-
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How to Turn on Dark Theme in Windows 10 using the Settings app?
To enable or turn on Dark Theme or Mode in Windows 10, do the following steps:-
Step 1. Click on the

Step 2. From the Settings app, click on
Step 4. From the right panel, in the “Choose your color” dropdown menu, you will see three options:-
- Light
- Dark
- Custom
Now, your Windows 10 theme, as well as the app, will have a Dark theme.
How to Turn On Dark Theme in Windows 10 using the Registry Editor?
Before tweaking the registry, we recommend creating a System Restore Point so that you can revert your PC to a previously working state in case something goes wrong.
Step 1. Press
Step 2. Type
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes

Step 4. Right-click over the
Step 5. Name the newly created key as

Step 6. On the right pane of Personalize key, right-click in the blank space and select

Step 7. Name the newly created DWORD (32-bit) Value as

Step 8. Double click on

Step 9. Repeat the above steps for the user key as well at the following location:-
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize
Once you have completed the above steps, close the Registry Editor and reboot the machine. After restarting the system, open the Settings app, and the Dark theme should be activated now.