Here's how to turn on dark mode when using YouTube's desktop website. If you're logged in, click on the profile icon in the top right corner. If you aren't logged in, click on the "⋮" vertical ...

However, the dark mode applies to not just Windows, but also to other apps. The first thing to note is that if you turn on dark mode on your Windows device, it will automatically change the ...

Bing will then launch ... you want to put into Efficiency Mode, click the Efficiency mode icon at the top right of the screen, then confirm that you want to turn on Efficiency Mode for the app.