I am running windows 7 Pro and Acrobat 10.1.12. I installed an alternate PDF software program called SodaPDF and then immediately uninstalled it since I quickly realized it would not work in my situation. But after removing it from my computer I could no longer open up any PDFs inside Explorer 11. I made a restore point but if failed to Restore for some reason. Now when I try to open a PDF inside explorer I get a new instance of explorer with an empty screen but for a tiny crossed out circle in the upper left corner. In toolbars and extensions in Manage Add-ons I see Adobe Reader is enabled and three other Adobe Create toolbars also enabled. Is there anything I might try before I deactivate and reinstall the software?
Try Help>Repair.