Have you changed your bios or post to boot from disc?
When you turn it on try some of the F keys, usually F2 F8 F10 or F12 ,
Just keep tapping them while the machine is starting up, before it gets to boot.
When you turn it on try some of the F keys, usually F2 F8 F10 or F12 ,
Just keep tapping them while the machine is starting up, before it gets to boot.