USB boot up on an old ASUS laptop

[passionatepilot]

I have an ASUS A42J and I need to boot from a bootable USB drive with Windows 7 as my OS on the hard drive has fallen apart. But within the F2 BIOS there is no list of any USB to give priority. How can I boot my machine from a bootable USB drive?

 

[Saga Lout]

In some BIOS setups, the drive won't show up in boot options until it's got a device plugged in. Have you made the stick bootable yet? Rufus is a good little utility for that.

 

[passionatepilot]

Thanks. Yes the USB is bootable

 

[Saga Lout]

Is there an option in BIOS for USB Legacy Support or similar? That would need to be enabled so there is power to the USB Ports before the operating systme cuts in.