If you view YouTube in more than one browser, and/or on more than one device, you’ll need to repeat the process on each one. Note, switching to the Dark Theme will only affect the current browser. Once enabled, click on the Profile button (or the Hamburger button if you're not logged in) and you can enable the Dark Theme there, or Restore classic YouTube if you’re not a fan of the new design. That means we can build new features faster, such as dark theme and more to come. Built for the future: We've been working on a totally new site design that's built on a new faster framework.Dark Theme: Activate dark theme from the new account menu to cut down on glare and take in the true colors of the videos that you watch.Clean design: The content and creators that you love shine with a clean, simple design.What you’ll get, according to Google, is: If it becomes visible, try finding LockAppHost.exe on the Details tab and ending the task. Try the below methods and check if that helps: While at the black screen, try using CTRL+SHIFT+ESC to start Task Manager. To access the new version of the site, all you have to do is go to /new, and click the Try It Now button. Your interest in Windows 10 is much appreciated. There’s now a whole new Material Design look for the site which Google says will make YouTube 'easier and more fun to use.' Google has now made it possible for anyone to easily switch to the dark side, and that’s not all.