Page Britt Posted February 9, 2021 Report Share Posted February 9, 2021 Good afternoon, My name is Page Britt, This morning I deactivated and uninstalled Nitro pro from my desktop PC in an attempt to isolate and fix a problem I was having with pdf thumbnails. After rebooting I reinstalled the version I previously had installed, 188.8.131.525. After I reinstalled I went to reactivate and received a message that my serial number is not valid. It's been continuously active and updated/upgraded on both my desktop and Surface ever since I originally purchased it on 2/22/17. My original license was for Ver. 11 which I upgraded with a subsequent purchase in your Fall 2019 Presale on 9/1/2019. Your license "upgrade checker" verifies that I have upgraded and have a license for Ver. 13 but now all of a sudden my serial is not recognized when I try to activate. Any help would be appreciated as I depend on this software on a daily basis and have to a certain extent been a brand ambassador for you folks by recommending Nitro as a very viable and even preferable alternative to Acrobat. Many thanks, Page Link to comment Share on other sites More sharing options...
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