cant find csm

[Kristen_1]

i ma trying to use a reinstall disc (win 8) i can only get to the bios screen it will not let me boot form the disc and i have no option for the csm, i NEED help please its driving me crazy i disabled secure boot and nothing

 

[metalicgeek]

CSM is also referred to as "Legacy" in some operating systems. Can you identify the make and model of your laptop or motherboard, so we can help you find the option?

 

[Kristen_1]

it is an ASUS X551M

 

[metalicgeek]

I'm reading several people indicating that the X551 does not appear to have a CSM option anywhere in the BIOS. I would thus recommend creating new USB installation media using the Windows media creation tool:

http://windows.microsoft.com/en-us/windows-8/create-reset-refresh-media