Hands-on with Windows 10 build 17666 showcasing new features and more

Build 17666 of Windows 10 comes packing lots of new changes and features that are in testing with Insiders in the Fast and Skip Ahead rings right now. In fact, it's one of the more interesting builds we've received in a while, sporting things like Cloud Clipboard, dark mode in File Explorer and more.

Also new in this build is dark mode for File Explorer, which also applies dark mode to the context menus on the desktop and in the File Explorer too (finally!) There are also UX improvements to Timeline and Windows Search, with Windows Search now offering a more clearer look at your recent Timeline activities.

Make sure you check out the video above and let us know what you think about this new build!

Zac Bowden
Senior Editor

Zac Bowden is a Senior Editor at Windows Central and has been with the site since 2016. Bringing you exclusive coverage into the world of Windows, Surface, and hardware. He's also an avid collector of rare Microsoft prototype devices! Keep in touch on Twitter and Threads