So I created 2 bootable USB, First USB, bootable using MBR Windows 8.1, second bootable using GPT Windows 8.1. Both are created using Rufus software.I already set the boot order to 1) USB HDD 2) USB FDD etc. I set UEFI and secured. Both bootable USB's dont work. So i set it to "Legacy and not secured", the first USB works but can't continue to Setup Page. Windows 8.1 logo displays, but after few seconds, it will go to blank sreen. I tried to wait for 30mins, still stuck to blank screen. I also tried to insert the USB to different USB ports, 1 USB 3.0, 2 USB 2.0, still no luck. What should I do? hope someone can help me? thank you! Btw im using murphy78 windows 8.1 ISO.