The ISO files for Windows 10 Insider preview build 14986 are now available to download direct from Microsoft



From Windows Central:

Build 14986 initially rolled out to the Fast ring in early December, and made its way to the Slow ring just last week. The build packs an absolute truckload of new features to check out, ranging from Cortana improvements to inking features and much, much more.

  Windows 10 build 14986 ISO files now available for download