Intel Compute Stick (STCK1A32WFC) - How to fix from botched Windows Update (WIN10 to WIN10)

The scenario: you got Intel Compute Stick plugged into your TV and connected to your WiFi/internet and did Windows update and suddenly it got stuck; then you hard reset and it's no longer working.  You tried clean/factory reset from the recovery and doesn't complete nor fixes the problem.

DO NOT PERFORM THE FOLLOWING:

• Remove the default partitions
• Reformat (later part)
• Install another OS/Linux (unless you know what you are doing, it is possible though)

WHAT YOU NEED/NEED TO DO FIRST:

• 4GB USB - to install Windows 10
• Rufus software - to create a bootable USB
  https://rufus.akeo.ie/
• USB HUB - for the keyboard/mouse and 4GB
• ShowKeyPlus - to recover the product key from Windows.old folder (after reinstalling Windows).  You can't run this software in Recovery Mode
  https://github.com/Superfly-Inc/ShowKeyPlus/releases/tag/ShowkeyPlus
• Windows OEM Product Key Tool 1.0 - to recover the product key from BIOS/EFI
  http://www.intowindows.com/recover-windows-product-key-bios-efi/
  https://neosmart.net/OemKey/
• Windows 10 ISO - don't just download it.  Highly likely all of this Intel Compute Stick (will refer to it as "ICS" from here onward) uses "Win 10 RTM Core OEM:DM" or Home version but OEM

Note: 

• OEM product keys works only with OEM ISO, same goes for HOME and PRO. Let me know if it is not the case because experiences and experiments told me so.
• Torrent a Windows 10 CORE OEM - it should say "OEM"

NOW.  RECOVERY PROCESS:

1. Once you have the Windows 10 OEM ISO, create a bootable USB drive from it using Rufus
2. Plug your USB hub with the Windows 10 USB, keyboard/mouse
3. Bootup ICS to Recovery Mode and go to Command Prompt (just look for it under Advance, I think)
4. Go to the drive letter of your Windows 10 USB (probably D, E, F, G, etc.) and do a "dir" command.  You should be setup.exe.  Run it.
5. Just follow the prompt until you reach "Advance" to install Windows 10.
6. Select this and when you get the option on the disk - install it on the biggest partition you see.  It will rename the existing "Windows" folder to "Windows.old" where you will recover the product key using the tools mentioned above - how? Just go figure after the successful installation of this new Windows 10.  The OEM build by the way should be 10240.
7. After a successful install run the product key recovery tools and use it to activate Windows 10 by changing the product key.  It should accept and activate.  Connect ICS to your WiFi. :)
8. Install ICS graphics and other drivers - manually or by Windows Update.  You should also see a new build being download since 10240 is old.
9. Make a backup of the product key and "Windows.old" folder for future reference and delete it to recover space.
10. Look for Backup/Recovery in Control Panel - create a backup image and store it somewhere.
11. Once the steps are performed, YOU'RE GOOD TO GO!