you cant. the dvd and hard drive run on sata chipset. on your usb issue make sure in the bios the usb ports are turned on and make sure download the chipset drivers from the laptop vendor make sure you dont have a damaged driver. with laptops most usb ports are part of the system board. may want to send email to repair shops for est of replacing the system board. if the unit is out of warranty if it in send it in for repair.