HP Photosmart C4200 series
Model No. C4280
SNPRB-0721
MY78MJQ30J
I need some help to stop a "fatal error in installing" coming up all the time, when I am not installing anything. I installed the software when I bought the printer and have not touched it since. This message is interfering with any other programme, but I do eventually get it to print, but the message hasn´t gone too. Thank you.