Made my own Windows 10 ISO with an autoanswer file but it won't boot

[DawnTreader]

https://www.winiso.com/support/tutorials...e-iso.html

or use PowerISO.

The ISO must be bootable. Rufus will add missing files.

That must be the problem then. I will tell WinISO, a program I paid for to get this functionality to make it bootable. Thanks.

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So just as the title says, I built an ISO with an autoanswer file. But it won't boot in the ventoy USB. So I made it into its own USB with Rufus and it boots and does what I need it to. Why won't it work on the Ventoy USB?

I was thinking that maybe it is some kind of checksum thing that Ventoy might do or maybe the fact that I used WinISO to do the adding of the autoanswer file.

Any and all help appreciated.

Test the ISO file with a VM (e.g. WMWare/VirtualBox) firstly.
Connect the ISO file to the CD/DVD of the VM and boot it to see whether it can boot OK.

To say something off topic, you don't need to make a custom ISO file with unattended answer file. You can use Ventoy's auto install plugin and injection plugin.
https://www.ventoy.net/en/plugin_autoinstall.html
https://www.ventoy.net/en/plugin_injection.html

The autoanswer was the easiest way that I currently know how to get what i need. Will look into these, thanks.