6 Replies Latest reply on Jul 7, 2014 6:46 AM by Jannema

    What to do with Error message "The serial number you entered is not valid"


      After updating my Windows I tried to reinstall Indesign CS3 and Indesign CS4 upgrade after that. CS3 installed just fine but the system doesn`t accept my serial number from the back of the Upgrade box or the sonfirmation e-mail I received from Adobe upon purchase. What can be done?


      Kind regards,