Unable to validate serial number of acrobat Xi Pro.
After completing installation process, I am unable to validate my serial number. System says that my acrobat version is too old. I purchased this full version in 2017. I did not install at that time, as I was happy with my earlier versions (with massively scalable thumbnail pages). Now Windows 10 has ended my past connections to those useful, earlier versions. Is there a workaround for validating my serial number and completing my install?
mike
