TOSHIBA Satellite Wont boot to a bootable usb

[Vertiginous]

So I have just gone and installed a 840 EVO into the laptop and im trying to format it to windows, I have created a bootable USB with 8.1 on it, I put the USB into the laptop and in the bios of the laptop I disabled secure boot and put the boot mode into CSM Boot because otherwise I would constantly get "Insert boot media and push..ect" Whilst I no longer get that message im now unable to boot into the USB, The laptop will try to boot into the SSD which has a copy of windows on from my other pc but will never succeed. I changed the boot order to USB>HDD/SSD>ODD>LAN but even then the laptop doesn't even try to boot to the USB, I can confirm that the USB works because I have tried it on my main pc and managed to get into the boot into installation, Has anyone got any idea as to why its ignoring the USB?

 

[Mikoyan]

Hi,

How did you make the USB bootable? Recommend using Universal USB Installer.

Also tried a different port?

Do you have a DVD drive in this laptop, have you tried an ISO copy of Windows 8.1 on this?

 

[Vertiginous]

I made the USB bootable using universal, the USB isn't the problem, I have had another computer load up with it, This laptop has no DVD drive

edit: Managed to get it working last night, Took the original hard drive from the laptop and cloned it to the ssd from my main pc