So i reinstalled windows 10,now i want to update my BIOS when i go to BIOS and plug in the USB the BIOS freezes when i unplug the USB it unfreezes,if i turn off computer plug in the usb than it will only sit on the boot menu if i unplug the USB it will start on the pc. I cant update my BIOS its running on F4 and there is F8 verison