Give it a shot. And if you feel the old CD/DVD drive is trouble, unplug it?
I need to install Win 7 on an old desktop but the original CD/DVD drive works when it wants to. I have a portable USB CD/DVD drive that works just fine on the machine. Can I install Win 7 using the portable USB drive?
I'm asking because when installing windows the system will need to make several reboots and I wonder if it will look for the original CD/DVD drive or will it look for and find the portable USB CD/DVD drive?