Hi benh,
As per the issue description mentioned above, you are facing issue with Acrobat Reader, is that correct?
Could you try following troubleshooting steps:
1- Download and run cleaner tool on the machine to uninstall reader: Download Adobe Reader and Acrobat Cleaner Tool - Adobe Labs
2- Reboot the machine
3- Download and install reader from here: Adobe Acrobat Reader DC Install for all versions
4- Reboot the machine again and check.
If issue still persists, you can download the previous version of Reader - (reader xi) from here: Adobe Acrobat Reader DC Install for all versions however its not recommended to download the previous version of Reader on the machine.
Let us know if you need any help.
Shivam