If you have updated your adobe and are now having issues printing or opening certain PDF files, below we have a quick fix that should take care of these issues.
- Open Adobe Reader X.
- Go to edit tab at the top, select preferences
- In preferences select the general category on the left hand side.
- Now when you look you will see a check box at the bottom of that window that states (enable Protected Mode at startup).
- Un-check this field and click yes to the box that states you will have to close and re-open Adobe
Now try and print or open those PDF files that you were having issues with and your problems should be gone.