Macbook Air Mid 2013 - Problems Installing Windows with Bootcamp

I have an 11.6" MacBook Air (Mid 2013). It has 8gb of on-board RAM, and a 512 SSD hard drive (the little stick that looks like RAM, I think it's the m.2 style...). I am using MacOS Catalina with all current updates as of today. This was installed onto this PC using the Internet Recovery and allowing it to partition the drive however it wanted, which was APFS.

I have tried for a month to install Windows 10 using Bootcamp. No matter what I try, the installation of Windows seems to either go on FOREVER at the "Getting Devices Ready" and never quit spinning the little circle, or it will run for a while and then seems to freeze and not spin anymore. Here are some things I have tried...

Originally I was using the 1909 build downloaded directly from Microsoft's website onto the MacBook itself. Bootcamp seems to run properly, it allows me to configure the partition (I usually select DIVIDE EQUALLY to give each OS 250gb to work with). It downloads its Bootcamp drivers and creates the USB drive with the downloaded ISO with no problems. After a few failed attempts, I tried downloading older builds directly from Microsoft's site...I have tried with 1803, 1607, and the original release (1507 I think it is). They all seem to hang at the same point.

Then I tried using my pre-existing Windows 10 build 1909 USB drive which I use on Windows machines all the time, and it also seems to hang at the same point. After a few hours I restart the PC which causes Windows to tell me that something went wrong with the installation and to restart it and try again, at which point I usually boot back into the MacOS and use Bootcamp to delete the partition so I can try again.

I have a live copy of a working Windows 10 on a 250gb laptop hard drive that I can connect using a USB / SATA adapter and it will boot fine into Windows 10. I have even installed the Bootcamp drivers onto this running copy of Windows and it all seems to work great. Since that seems to run great, I can't figure out why I can't install using Bootcamp onto the partition it created.

I did even try using a Windows partition cloning software to try to copy the working partition from the external drive onto the Windows partition of the laptop. This did not allow me to boot to that partition once it was complete. I was using a freeware partition and drive cloning software (Partition Wizard 11 Free) that usually works great for me when working on Windows machines. Maybe there is another program I could use that would work better (if I have to go that route).

I have tried resetting the NVRAM/PRAM and this did not make any difference.

The whole reason I even got this little convenient laptop was so that I could dual-boot MacOS and Windows 10 for the work I do. (I know, maybe I should just keep a separate Windows machine also, which I do have, but I am trying to keep from carrying so much with me to and from work and when I do service calls).

Is there anything in particular you can think of that I could also try? Or perhaps another way to clone a working copy of Windows 10 to the internal partition? I have read about people having similar problems and one thing I keep seeing suggested is possible bad hardware. I don't seem to have any issues with anything else, and everything else besides the hard drive is built onto this motherboard...and I don't have another hard drive to even try...but I would hate to buy one just to TRY just incase this also does not work.

I am driving myself nuts trying to figure this out, so any help at this point is GREATLY appreciated. I will work on this all night a couple times a week trying different things or different builds, then get fed up and quit for a week or so... but this is one issue I can't seem to figure out. I have done similar installs on MacBook Pro machines without any error... and I know this MacBook Air is supposed to support it, I just wanted to have something small and convenient and I just can't seem to get it working.

Thanks in advance for any help you may be able to provide!