If resetting Adobe Acrobat as the default is the issue, you would think this would happen automatically on the re-download. Can someone point me to a link that can fix this? Do I need to uninstall everything Adobe and re-install Acrobat Pro DC? HOW DO I DO THAT? I find Adobe website to be extremely unfriendly with troubleshooting. It should walk right through ans fix any Windows10 compatibility issues for paid subscribers. When I right click on a PDF file, highlighted option is "open with Adobe Acrobat Reader DC". That opens the PDF file but going to TOOLS repeats the above. I appreciate real and meaningful help that will walk me through this to get to the program I am paying for. Thank you!