To open the Registry Editor, open up the search bar and type “ Regedit” and then launch the app.There’s a value known as “ AppsUseLightTheme” that you need to tamper with in order to get the Dark mode on the Windows 10 overall. You need to open up the Registry Editor in the Windows 10 to enable Dark mode. You will definitely not like them a bit because nobody wants their all new Windows 10 to look like the old Windows 95 now, do they? So, if you really want a more high definition dark theme then you can easily get that by following our simple method below. You can always go for the simpler route and choose a dark theme from the Themes and visuals settings on your Windows, however, before you do that you should keep in mind that the default dark themes offered by Microsoft are really bad looking and aesthetically unattractive.