Os installation guide sony pcg -473N

[Guest]

i tried to boot from external cdrom but it doesnt work.

thanks

 

[Saga Lout]

i tried to boot from external cdrom but it doesnt work.

thanks

For a USB device to work at boottime, it has to have Legacy Support enabled in BIOS. Go in yours, seek out that setting and make the change then restart and the USB device will be bootable.

 

[aford10]

Also, make sure the external CD drive is selected as the first boot device in the BIOS.