The connection between Canon camera and computer indicates an unrecognized usb device.

First of all, XP systems can be connected without installing drivers. I don't know if you are connected to the usb port in front of the computer case. I suggest you try the usb port on the back of the chassis to see if it can be used. If not, try another computer. If the computer still doesn't work, there may be something wrong with the usb port of the camera. If the warranty period expires, it is recommended to use a card reader.