I would suggest unserializing the product and then re-serializing the product using the following command lines syntax .
Unserializing the product first with this syntax:
adobe_prtk --tool=UnSerialize --leid=<LEID> [--locale=locale] [--deactivate] [--removeSWTag]
Generate a new "prov.xml" file with this syntax:
adobe_prtk --tool=VolumeSerialize --generate --serial=<serialnum> --leid=<LEID of product> [--regsuppress=ss] [--eulasuppress][--locales=limited list of locales in xx_XX format or ALL>] [--provfile=<Absolute path to prov.xml>]
The serialize with this syntax using the new "prov.xml" file:
adobe_prtk --tool=VolumeSerialize [--provfile=<Absolute path to prov.xml>] [--stream]
Also user this as the LEID instead when serializing: V7{}AcrobatESR-12-Win-GM