I just had a look at my notes and it turns out it was pretty straight forword and mostly based, infact wholely based, on @yener90 first post. I will try and write a step by step guide but, to get you started you will need to start with yener90 Hi10pro toolbox see his original post. (click the link for "Hi10 Pro")|
Then follow yener90 instructions for preparation.
I don't know if it is the case with all Hi10 pro HQ64 versions but mine came, luckily, with an unlocked boot image if yours doesn't then this will probably not work. You should be able to check by rebooting to bootloader and it will say whether it is locked or not. If it is locked I personally would not risk updating the bootloader with the one that comes with yener90's Hi10pro toolbox.
Also please note that I did this in Linux not windows but it shouldn't make a difference.
So if your bootloader is unlocked you can skip yener90 first step and go straight to the second and all should work. Before doing that though you will have to replace the twrp image that comes with that toolkbox as it doesn't work well with HQ64 version of this tablet. You can download the latest version from http://konstakang.com/devices/chuwi_vi10plus/TWRP/ scroll down till you find the version for HQ64. download the image and put it in the TWRP-recovery folder of the Hi10pro toolbox and rename it to "hi10pro-TWRP-recovery.img" over writting the image already in that directory.
Once you have done that just follow these steps within a command prompt, which may need admin rights. Make sure you CD to the folder you unziped the Hi10pro toolbox to. If you've done everthing correctly you should just be able to run Outside_boot-TWRP-recovery.bat from the toolboxand everyhting should work fine.
Just in case here are the steps you need to take if you want to do it manually.
1. BIN\adb kill-server
2. BIN\adb wait-for-device
3. plug device in
4. BIN\adb push TWRP-recovery\UPDATE-SuperSU.zip /sdcard/
5. BIN\adb shell mkdir /sdcard/TWRP
6. BIN\adb push TWRP-recovery\.twrps /sdcard/TWRP/
7. BIN\adb reboot bootloader
8. BIN\fastboot boot %workdir%TWRP-recovery\hi10pro-TWRP-recovery.img
You should now be in TWRP recovery just select INSTALL choose you sdcard and select SuperSU.zip.
Once thats done you should be rooted.
I hope this helps people.
Also please note that I had many problems with trying to get exFAT to work the file supplied by yener90 only kinda works and has some real quirks. For instance if the sdcard was plugged in at boot the driver wouldn't get started and therefore an exfat sdcard would not be found. I did find some work arounds for this but they were to clunky for my liking so eventually I gave up on version of android that came with the tablet and switched to cyanogen mod which I can highly recommend, also doesn't need rooting as it is built in.
P.S. This is almost in its entirety based on @yener90 work and he deserves all of the credit I just spent some time experimenting and googling to make it work for this model.
P.P.S. I got frustrated when I couldn't root my tablet so I tried the unlocked boot.img from yener90 toolbox, luckily it wouldn't install because my bootloader was already unlocked thats how I found that out. If your bootloader is locked I WOULD NOT TRY INSTALLING THAT BOOTLOADER as there are changes to the bios in this model of the tablet. You have been warned you could brick your tablet.
P.P.P.S. I take no responsibility should any thing go wrong try this at your own risk. It worked for me.