I have a emachines e725 and i'm working on it for a customer of mine. Thee went in and password locked the HDD in BIOS and I was going to bypass it with one of hirens boot cd dos programs. When i try to boot from USB it just goes to the HDD lock screen same thing with cd drive. I changed the boot orders in bios but still nothing. I've tried everything i know. I even tried both the cd and usb drive on another computer and they work fine. I tried removing the HDD and letting it boot it just stops on a blank screen. I can get in bios and i can see the splash screen but it won't for anything boot to usb or cd.