If it exists as HP says, plug the usb cable into the printer & then you computer, on your screen , the printer add dialogue will appear, if the driver doesn't actually exist on your computer, it will say something to the effect of 'do you have the cd', or use Windows update', use the windows update & if it exists, it will find it. (being an old printer, HP has not made a WIN7 driver & some type of generic driver is probably being used).