Here's what's new, it's not much. It's always exciting when a build of a pre-release version of Windows leaks out of Redmond. And so it is with Windows 10 build 9888, a post-Windows Technical Preview build of Microsoft's next desktop OS. Cautiously installing it in a virtual machine?yeah, I'm still a bit burned by build 9879?what I see, unfortunately, is not a heck of a lot of difference. This is no Consumer Preview build.