I'm trying to apply an individual BIOS update to many servers. In the old days, I'd use Rufus to make a USB stick bootable, copy the BIOS update file to it, walk to the server room, plug it in, boot ...

This post includes some best free ISO maker tools for Windows 11/10. You can create an ISO file from a folder (including sub-folders and files), a file (like EXE, Audio, Video, documents, etc.), ...