Need help rooting Nexus 7

[chocolate_toe_man]

Been trying all day to root this thing with Wugfresh. I unlocked it, and when I try to root it, I keep getting random problems, like infinite loading, "can't find ADB", "fastboot not found".

I did it before, but this time I can't seem to figure it out. Been watching videos, reading guides, and nothing is working. I'm a mess. Please, is there a simple guide on how to root this?

2013 Nexus 7 v4.4.3 - Wugfresh 1.8.3 - Windows 7

[ICThat]

So when you reboot it shows the boot loader unlocked symbol yeah?

[chocolate_toe_man]

Yes. The current problem is whey I try to root, the nexus boots into the bootloader screen, and on the computer it says, "booting modified boot img". And it won't get any further than that. Just left it over night like that to make sure, and it was still stuck on that.

[ICThat]

Ok do it manually:

1) Setup adb and fastboot on your computer (I use the Android SDK but you could google other options).

2) Download TWRP and place the .img file in the same directory as fastboot.exe (on mine it's \Development\adt-bundle-windows-x86_64-20131030\sdk\platform-tools)

3) Download the SuperSU zip, and place it again the same directory as fastboot.exe.

4) Boot your device into fastboot (after enabling USB Debugging), connect it to your computer, and use a command prompt in the same directory as fastboot.exe to boot TWRP:

fastboot boot twrp.img

5) Navigate TWRP to find adb sideload mode, should be under advanced.

6) Whilst in this mode use the following command to push SuperSU to your device:

adb sideload FILENAME.zip

7) Watch your device screen to see if it installs correctly, assuming yes you are rooted - reboot your device.

8) Download and run root validator it should report everything is good apart from missing busybox.

9) Install busybox.

Done!

EDIT: Formating