Go to the HP website and choose your software/driver language and then Select Operating System. If you don't know which OS (Operating System) you have, it should be found from your Start button, open the Control Panel folder (which should open All Control Panel Items), then open the Systems folder. This would provide Basic Information about your computer and info on your System Type to be selected from the list in the website above.

Click on the corresponding link for a pop-up menu to appear. Following all on-screen instructions, run the program to completion and restart your computer.