Here is the procedure explained with a bit of detail:
Download both the toolbox and the ROM from above.
Extract the toolbox, but leave the ROM as a zip file.
Copy the ROM to and external SD on your tablet if you are doing a complete wipe, or you could use the internal SD if you don’t mind leaving files left over from the previous stock ROM.
In the toolbox folder execute steps 1,2,3 and 5. You can skip 1 and 2 if you have already installed Machete’s root from another post.
** If you get the boot screen enabling the selection of Android or Windows, DO NOT skip the countdown by clicking OK. You will bypass the startup commands **
Boot into TWRP recovery. There is a way to do this with buttons, but I’ve always found this difficult. Easier to open cmd.exe and execute “adb reboot recovery” (without the quotes). Depending on your PATH, you may need to switch to the extracted toolbox \BIN folder, or just run ADB_shell.bat.
In TWRP recovery, select wipe and wipe using the default options. I also chose the advanced wipe and wiped the internal SD so no carry over files were kept from the previous installed apps. You may choose to leave this.
In TWRP select install and the location where you stored the ROM zip. Swipe install and wait.
Reboot and wait.
After about 5 minutes you will have a new version of Android on your tablet.
Profit!
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