I had a problem with Acrobat Pro DC 2015 not allowing me to minimize the window (it would only stay in maximum window size). I uninstalled and reinstalled but now I get the message Serial Number you provided is valid, but a qualifying product could not be found on this computer when I enter my 2015 serial number. It seems to think that I am upgrading but I just want to reactivate my old 2015 version that I had to reinstall. How do I reactivate my 2015 version again.
Where do I get the other serial number? I only have one.
you must have had two at one time to install acrobat dc the first time.
you have 3 ways to recover a serial number that you once had:
1. you can check your account (if you purchased from or registered with adobe), https://accounts.adobe.com
2. if your adobe program is installed on another computer you can recover its serial number from that computer, (win:) http://www.belarc.com/free_download.html, (mac:) https://mac-product-key-finder.com/
3. http://helpx.adobe.com/x-productkb/global/find-serial-number.html
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