As suggested it appears that the problem was Ventoy Software in this case. As suggested I loaded the ISO using Balena Etcher onto another USB Stick instead of using Ventoy 1.0.64 and Trisquel is now working and this REPLY is submitted via TRISQUEL off my Laptop via USB stick.

INFORMATION SUPPLIED FOR YOUR USE IN CASE YOU WANT TO DO SOME DEBUGGING. I also noticed that the Laptop was running slower with normal tasks while the ISO was sitting in Downloads. It looks like WIN10 and the ISO system were interacting even though the ISO wasn't installed or being used by the laptop.

Laptop used was an ASUS Intel Core I7 2.2Ghz,RAM 16Gb WIN 10 version 21H2,build 19044.1503

I ended up doing a 'SYSTEM RESTORE' on WIN10 laptop and then was able to delete the ISO normally from the Laptop ? WIN10 problem afterwards with the ISO as well, I tried to delete the ISO from WIN10 Downloads Folder and WINDOWS would not allow the ISO to be deleted because it said it was 'active in System' ? then powered down the laptop and rebooted with the same result. I was using an AMD 8150 eight Core CPU at 3.6ghz The TRISQUEL startup screen did a Disc Check and there were no defects. (which is being used to boot other Distro’s ok) I was using the Supplied ISO via a USB Stick running VENTOY configured stick. I was trying to do a test run with TRISQUEL and got the errors above. usb 10-2: Fatal- failed to load firmware 0000:07:00.0: missing free firmware (Non Free firmware Loading is disabled) I was not able to fully boot thru via the Live Disc with the result listed below. In case you want some failure data the following data is supplied.

Ventoy windows 10 error