An unlicensed copy of Acrobat 8.0, which is downloaded online, is always prompted to verify the original serial number when the new system is installed.
After analyzing the installed profile, it was found that the specified program was upgraded from Acrobat 7.0, (that is, with the upgrade mode, not the newly installed mode) The serial number that comes with it is also the serial number that can only be used to upgrade the installation.
This makes it clear that the "original serial number" that the installer needs to verify is actually the serial number of the Acrobat 7.0 Pro . Because Acrobat 7.0 is not installed on the new system, the installer cannot find the Acrobat 7.0 serial number that was used to verify the upgrade on the system. Find one from the Internet, fill in, verify the error (belongs to the installation program internal algorithm validation), the installation is successful.
Included with one Acrobat 7.0 Pro serial number: 1118-1219-4971-0254-7113-2570