As per the issue description mentioned above, Acrobat Pro DC is disappearing on your Mac machine upon reboot, is that correct?
Could you try following troubleshooting steps:
1- Please run this cleaner tool to uninstall Acrobat: Download Adobe Reader and Acrobat Cleaner Tool - Adobe Labs
2- Reboot the machine
3- Download and install Acrobat from here: Download Acrobat DC installer for Enterprise term or VIP license
4- Reboot the machine again and check.
Let us know if you need any help.
It looks we have resolved the issue.
Our solution was to:
1- Re-install Acrobat Pro DC after reboot
2- Run the Acrobat Uninstaller
3- Re-install Acrobat Pro DC one more time
After doing this procedure Acrobat Pro DC has been stable.
Glad to hear you're back on track!