Problem with 2004 IS0

So just to add to this, I have literally just installed Windows 2004 version from within 1909 using the Microsoft media creation tool and choosing update this PC now, and it worked fine, I then used the same tool to create a Windows 2004 USB so that I can clean install at a later date.
I think sometimes the creation tool may fail if you use it on a front USB port or a USB hub, try using a rear (direct to motherboard) port and try a USB 2 port rather than USB 3.0 if you still have issues.

1 I got the ISO using Google Chrome method
2 Used 4 different sticks from 2 manuf. One was 32 gigs, rest were 8 gigs
3. Did not know about the WIM file size. First time with it.
4. Using Hei Doc. net method now.
5. Can't fall asleep with MS these days !!!

Thanks for all the help
The last upgrade was using the Chrome method.

So it sounds like MCT starts but can't write to your USB's.

Would that be a correct statement?

As Bree asked are there any error messages?

The only error is a general "wim to large" to fit on stick. I have the iso expanded on an external hdd and will copy it to my C: and install from there. Have done it that way a few times. First time with the WIM thing.

I get an error like "something happened" when I start to run the WMC, This has been for a long time and posted many times in the past by others. In other words WMC will not run PERIOD with WIN 10 installed. This is on multiple machines, desktops and laptops all running PRO. That is why I started to use the Chrome browser way which worked for 1909. This is the first time I had a problem with a WIM file anywhere getting an ISO. I only ask when I run into something I can't figure out.

Some people report (on Windows support forums) that running the MCT from the USB flash drive you want to use works, I have used that method once, back with 1903 I believe, and it did work, never did find out why it wouldn't work as normal. The MCT is removed from the USB during the format stage.