(Licensing Entity Identifier) varies by version. For standard Acrobat DC (Continuous track), it is often V7{}AcrobatCont-12-Win-GM Troubleshooting & Common "Fixes"
If the machine has no internet access, you must generate a prov.xml file first, according to Adobe support discussions. on a machine with Internet: how to activate adobe acrobat dc using cmd fixed
Use the following command to activate Acrobat using your serial number. [SERIAL_NUMBER] with your actual 24-digit Adobe serial number, maintaining the dashes. For Acrobat Pro DC: (Licensing Entity Identifier) varies by version
Searching for "fixed" versions often leads to community forums suggesting third-party patches or "keygen" tools. get a response code
Use the toolkit to generate a request code, get a response code, and complete activation without internet access. Spiceworks Community Permanently Fixes License Loss: