When I upgrade my old version of windows to the latest version, I am experiencing HP printer driver is unavailable error. I have upgraded my windows 7 PC to windows 10 PC, I am getting this error message. While printing the documents through my HP printer, I am facing HP printer driver is unavailable issue. I am attempting to find out the actual reasons of this technical issue. Really, I am experiencing this error, so I am not able to print the documents through my HP printer. I am sharing this technical concern with online experts, but nothing is very helpful. Can anyone recommend the easy ways to sort out HP printer driver is unavailable error?