On my secondary machine I'm in the Windows insider program, where we run the beta versions of Windows 10 prior to general release.
The latest version has some pretty cool features including a dark theme for Explorer, a redesigned Snip for screenshots and a few others which I'm still discovering. I've been in the Insider program for a few years and have never had a problem with it. No crashes or blue screens, so it's definitely worth a try if you want to stay ahead of the game.