Macos – Why does the box version of iWork ’09 ask me to enter a serial number

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I have just purchased an iWork '09 box. After the installation, I tried to open Keynote but instead a popup appears asking me to enter a serial number. But the serial number is nowhere to be found on the box or on the DVD … But I'm sure the box version of iWork '09 doesn't even require a serial number. So what's going on??

One thing to note is that I did install the trial version of iWork '09 before installing the full version. So I also tried removing iWork '09 trial completely before installing the full version … no luck.

Does anyone have a clue of what I might be doing wrong?

Best Answer

sudo rm -rf /Library/Application\ Support/iWork\ \'09/

and install from DVD once again. That did it for me.