You need to create a offline pack for Microsoft Visual C++ 140 UWP Desktop Conversion Extension and then integrate the pack and the App using DISM.
Why you want this inside the image? Note, you are always may download WT from GitHub, unpack 2 times and use. Moreover WT now is under hard development. WT used inside the topic just as a good universal example to demonstrate things and people may try manipulate UWP in different ways, nothing more. I'm even don't need this new WT on my machine (for now).
Hi @MSMG Can you send me your email..?? I'd like to help you by adding your email to a GDrive account, giving you write permission. It's a way to thank you for everything you've done for the Community. If you want of course.
Check your disk space. I recommend the "BleechBit" opensource for cleaning. Clear browser cache. You can try before that, refresh the page by pressing "shift + F5". If it doesn't work, log out and log in again.