This is the first time I have had a problem with a HP printer that I can't figure out. I lost my link to the software that Is used to compile multiple scanned pages into a single PDF file. I have always been able to fix it by reinstalling the software, but this time I get a permissions error for the installer file in Program Data. I have tried everything I can think of including removing everything HP with Revo Uninstaller, reinstalling Win 10 Pro 64, temporarily disabling the firewall and I still get a failure to install. Win 10 finds and installs the printer just fine and I can manually communicate with the scanner but can never get to the point of installing the software I need or the fax setup if I wanted it. Any ideas would be appreciated. One thing I did discover on this journey is if you are having trouble with shutdown in Win 10, disable fast startup. Some genius figured if they used partial hibernation they could get the computer to start faster. I can't think of an easier way to corrupt files and cause a problem. It's in power settings under Power Options, Choose what power buttons do, uncheck fast startup. You won't miss it unless you have an under powered computer and it clears up shutdown problems after the first restart.