Betty, I am sorry. You do not need a CD.(As long as you have windows XP or newer.) You do not need a manual. You do need a USB cable and a power cable. Plug the power cable in. Plug the usb cable into the hard drive, and then into a USB slot. Click on start. Click on 'my computer'. You should see there, a new item. This new item should be an E: drive, or something of the like. You click on it, and it will open up. You drag and drop... copy and paste... or put what you want onto that External Hard drive from there. That is how mine works.