I've tried a variety of USB sticks with different bootable media (Win10, Darrick's Boot & Nuke, Ubuntu), all freshly made today. I've tried using the Windows boot options to force a boot from USB, set USB first in the BIOS under boot options, and used F12 to select the USB stick manually as my boot medium.
No matter what I do, the system keeps moving to and booting from the Windows drive.
Any suggestions? The USB keys seem to be recognized; in Windows, I can see/read/modify contents. They just won't boot, andthe system just keeps horking me into Windows.