Every time a new update comes out Rootjunky is quick to release a modified script that makes it super easy to install. Google's images are broken and the flash-all.bat never works. Tom always fixes this. He also puts out a version that allows you to flash without wiping your data. Today he released the script for Nexus 6P, Nexus 5x, Nexus 6, Nexus 9, and Nexus Player.
To install head to the link in the description, grab the file that corresponds to your device, unzip the file. On your device be sure to enable usb debugging, boot into bootloader mode, and plug the phone into your PC. On the PC open a command prompt from within the folder. Type the command corresponding to the flash-all.bat file you wish to flash. Enjoy Android N on your device!
via RootJunky.com