
By enabling this feature all the Windows 10 apps gets the dark theme enabled which you can’t enable by the app setting. Select Light to disable or leave Dark Mode. Step 2: You’ll see two options in the Appearance section: Light or Dark.

In the OneNote Options dialog box, click the General tab. To turn off Cortana using the Group Policy Editor: Before using the Registry Editor or Group Policy Editor methods, consider setting up a system restore point. To turn high contrast mode on or off from the sign-in screen, select the Ease of access button in the lower-right corner, then turn on the toggle under High Contrast.

So the first thing to do, then, is to open the Advanced Startup Options menu. How to turn off dark mode windows 8 Options.
