I say that because the USB has a light that comes on, if that is any kind of indicator. I tried the F12 and moving the usb to different ports but it seems like the USB's are not active until after windows starts. Oh, I used Mint 19.2 not through windows. Seems like they simply loaded the iso image direct but in this case.yeah I followed the Mint manual. I dont recall having to do that when I installed 19 on my other computers. I see where passwords are set up but they all appear eyed I used the procedure per Mint installation manual. I will read through that thread in more If there is a password somewhere I am not finding it. I don't know enough about UEFI to know if that is true or not.
I found another similar thread on that forum where one guy was saying that some of the UEFI's wont allow another OS system to be installed. Appreciate the had not found that that thread yet.