Download Nexus Root Toolkit 2.0.4
Download Nexus Root Toolkit 2.0.4 from here, here or here. 
You can download previous version 2.0.3 from here.
You can download previous version 2.0.3 from here.
Unlocking, rooting, relocking and unrooting simplified! (and much more!)
VERSION 2.0.4 - This program will automatically bring together all the files you need to  unlock and root your device in a few clicks, or flash it back to stock  and re-lock it. You can also use this program to backup/restore all your  important data, flash zips, set file permissions, push and pull files,  install apps, generate logcats/bugreports, and much more! With the  included file association options, you can perform tasks like flashing  zips, installing apps, restoring android backup files, and  flashing/booting img files with just a double click! The program  includes a full featured interface for automating tasks in TWRP,  enhanced restore features, an in-built auto-updater/notification system,  ‘any build’ mode, advanced restore features,’NRT- Live Log’ for viewing  the adb/fastboot cmds that are run in the background, quick tools  utilities, and tools for taking screenshots/screen-recordings.   All the  latest official Android builds and Nexus devices are supported.  The  program intelligently and selectively downloads the files it needs for  your device and makes sure you are using the latest files available.   The program can even auto-detect your device and build.  This release  brings fixes and optimizations.  
Supported Nexus devices:
· Galaxy Nexus: GSM Models (both yakju and non-yakju builds)
· Galaxy Nexus: CDMA/LTE Verizon Models
· Galaxy Nexus: CDMA/LTE Sprint Models
· Nexus S: Worldwide, i9020t and i9023 Models
· Nexus S: 850MHz, i9020a Models
· Nexus S: Korea, m200 Models
· Nexus S 4G: d720 Models
· Nexus 7: Asus Tablet
· Nexus 7 3G: Asus Tablet
· Nexus 7 v2 (2013): Asus Tablet
· Nexus 7 v2 (2013) LTE: Asus Tablet
· Nexus 10: Samsung Tablet
· Nexus 4: LG Phone
· Nexus 5: LG Phone
· Nexus 9: HTC Wifi Tablet
· Nexus 9: HTC LTE Tablet
· Nexus 6: Motorola Phone
· Galaxy Nexus: GSM Models (both yakju and non-yakju builds)
· Galaxy Nexus: CDMA/LTE Verizon Models
· Galaxy Nexus: CDMA/LTE Sprint Models
· Nexus S: Worldwide, i9020t and i9023 Models
· Nexus S: 850MHz, i9020a Models
· Nexus S: Korea, m200 Models
· Nexus S 4G: d720 Models
· Nexus 7: Asus Tablet
· Nexus 7 3G: Asus Tablet
· Nexus 7 v2 (2013): Asus Tablet
· Nexus 7 v2 (2013) LTE: Asus Tablet
· Nexus 10: Samsung Tablet
· Nexus 4: LG Phone
· Nexus 5: LG Phone
· Nexus 9: HTC Wifi Tablet
· Nexus 9: HTC LTE Tablet
· Nexus 6: Motorola Phone
Instructions:
1. Select the correct device and build (what you are currently running)
2. Configure your drivers if you haven’t already using the driver  guide (If you aren’t sure use Step 3 of the driver guide to test your  drivers).
3. If you need to, backup your important data.
4. Unlock your device
5. Root your device
6. Enjoy! ^_^
- Learn more about each option by mousing over the control, dynamic tooltips will provide you more information, also each button displays a message about what it does first.
 - So the best way to get familiar with the toolkit is simply to press the buttons and read what it says.
 
What’s new in Nexus Root Toolkit 2.0.4: February 4th, 2015
· Updated included masterlists to the latest version available.
· Fixed some typos.
via www.wugfresh.com
