Adobe Acrobat DC not responding

Good day everyone,

I have a user who has an issue whereby whenever he opens a PDF file with Adobe Acrobat Standard DC, it keeps having the same "not responding" issue after perhaps a few seconds to a minute after opening it. And it will be "not responding" forever. 

Have to close the task manually via the Task Manager always.

Have tried the following but it is still the same;

1. Reinstalled fully.

2. Performed the repair function.

3. Turn off the protected mode and uncheck the enhanced security.

4. Distiller DC is activated.

5. Tried to install Adobe optional update but it shows error and could not install.

Is there any other solutions to this? I have also attached some imanges for references purposes.