I am using an Asus G75VW Gaming Laptop running Windows 8.1
I have tried creating a bootable USB using the approach
in this tutorial.
After restarting I selected the USB stick as my boot option. I was greeted by a red screen which said "Invalid signature detected. Check secure boot policy in setup."
I changed the options in BIOS (or UEFI, whichever it is) to disable fast boot as well as secure boot. I then saved and exited.
I held down the esc key to choose my boot option as usual. The prompt asked me to choose my boot device. I chose the USB stick. I was then prompted with the same message. I chose the USB stick once again.
My computer then booted straight into Windows as if I told it to. Not sure what is wrong here. Any suggestions?