There are a few ways one can install the official TWRP Recovery on the Google Nexus 7 WiFi version of the tablet. Any time you get the chance to install the TWRP Manager application from the Google Play Store I suggest taking it. The TWRP manager gives you an easy solution to install your recovery, plus it comes with some handy additional features from its main menu. From within the same app, you can choose to backup, restore, and there’s an in-app payment option to remove the advertisements if that’s your thing.

While the TWRP Manager application is great for some, it’s not possible to use for others. These are the instructions to install a custom recovery on Google Nexus 7 2013 WiFi using adb commands from a Windows computer so both rooted and non-rooted users can install the recovery:

REQUIREMENTS

• The custom recovery file in this guide is intended for use on the WiFi variant of the Google Nexus 7 2013 only.

BEFORE WE BEGIN

• You might be interested to learn that anyone with root access to the Google Nexus 7 2013 WiFi can head over to the Google Play Store and download the TWRP Manager application and install this custom recovery that way. The TWRP Manager app is great because it gives you all of the versions of TWRP worth installing on your device and not everyone is always interested in installing the latest version. However, the downside is that you can only use it if you are rooted. Thus, anyone who does not want to root the Nexus 7 will need to install the TWRP Recovery this way. Further, anyone can install TWRP Recovery this way, including those of you with root access.
• Navigate to the Settings > About Device > Build Number and tap it until it says you are using the device as a developer. Navigate back to the Settings > Developer Options and choose to enable the USB Debugging Mode from within your Developer Options menu.

HOW TO INSTALL TWRP RECOVERY ON GOOGLE NEXUS 7 2013 WIFI

1. Download and install the adb on your Windows computer before you get started with the rest of the guide.
2. Download the TWRP Recovery file for the Nexus 7 2013 WiFi from here.
3. Click the small triangle that’s on the right side of your file after it finished the download.
4. Choose to “show in folder” from the menu.
5. Drag or copy the custom recovery file over to the desktop of the computer.
6. Right-click on the file and choose the option to “extract here” from the menu.
7. Copy or drag the recovery file you just extracted over to the same folder as your adb so that they are both within the same directory.
8. With that folder open, hold down the Shift key and right-click the mouse within the folder where there are no files to bring up a new menu.
   Choose to “open a new command prompt window here” from that same menu.
9. Type the following commands, confirming each one separately with the Enter / Return key before moving onto the next:
10. adb reboot bootloader
fastboot flash recovery twrp.img
fastboot reboot

Press the hardware key combination on your Nexus 7 device to boot directly to the recovery mode during the first time boot — doing this will prevent the chance of the stock recovery from wiping over your work.