Ports

I had to crash my desktop computer. Since that time I have re-installed all the software without any problems. The only thing it is giving me any problems with is trying to install any outside equipment. It won’t let me install my printer or my scanner. Both of them have CD’s. The scanner will go through the entire process, but not be operable and doesn’t specify the problem. The printer will not go through entire installation it says “can read the port not read properly” I have purchased different USB port and tried that with it, but still can’t get it to complete the installation. Since that time I have installed both on my laptop because I need these for college, but would rather have them on my desktop. Any advice?