I’m having breakfast while you’re half an hour late for bed 
In the 32 bit thread I already wrote about the “Pentium 4” series of processors:
Here is the procedure for verifying an ISO image on Windoze:
https://forums.linuxmint.com/viewtopic.php?f=42&t=291093
Also:
If I remember well, some (old?) PCs or Laptops can not boot from all USB ports. It’s possible that some work, while others don’t.