Our guide below uses Windows 8.1, but the process on other OSes is similar. Downloads and installs You're going to need three downloads from the Web, some of which you may already have if you've dabbled in Android rooting and modifications before. First of all, find the system image you need for your Nexus 5 or Nexus 7 from the the official download page . In this guide, we're using the Nexus 7 "Razor" version, which weighs in at 422MB. Keep this in a safe place on your system. Then you're going to need the Google USB driver for Windows. You may have attached your phone or tablet to your PC before, but these specialist drivers enable you to do more than just copy over music and photos. Finally, you're going to need the Android SDK kit , which you can unpack in a folder of your choicejust remember where that folder is.
Original article here: http://fieldguide.gizmodo.com/how-to-install-android-l-preview-right-now-1599055870/+barrett