Change Product Key Of Mac Office 2008


Chances are, you may want to change the product key of your Mac Office 2008 upon finishing an update from their site because the product key used to install your Office 2008 installation used an invalid product key. If after the update it does detect that an invalid product key was used, the office assistant will keep on popping up while the application that you chose to open will never be seen. To reset the product key, delete the following files and send to trash.

  • /Users/[username]/Library/Preferences/Microsoft/Office 2008/Microsoft Office 2008 settings.plist
  • /Applications/Microsoft Office 2008/Office/OfficePID.plist

[username] would be the username of your laptop. Run any Mac Office 2008 application and the office assistant will now have a textfield of the product key for you to input.

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82 Responses to “Change Product Key Of Mac Office 2008”

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  1. 76
    Jamie Says:

    Ok, I still can’t get this to work.

    I deleted the plist, but apparently don’t have the other file that I need to delete. Is there anything else I can do to reset the key? I have a new product key to use, and when I enter it in with just the plist deleted nothing happens, although I don’t get an error message, which is promising.

    Anywho, this is really helpful, I just need to know if there’s anything to do when I don’t have that other file to delete.

  2. 77
    tech Says:

    as far as i know, those are the only files that you need to delete

    it worked for me

  3. 78
    Jesse Says:

    I have the same problem a lot of other people have been mentioning; that after I delete the files and start up the setup assistant, nothing happens when I paste the key and click continue. It’s pretty frustrating.
    Any ideas? Help would really be much appreciated. Thanks guys.

  4. 79
    Jesse Says:

    I have the same problem a lot of other people have been mentioning; that when I delete the files and start up the setup assistant, absolutely nothing happens after I paste the key and click continue. It’s pretty frustrating.

    Any ideas? Help would really be much appreciated. Thanks guys.

  5. 80
    Hila Says:

    I deleted the two files recommended for fixing the invalid product key for office 2008 for the mac, and restarted my iMac. When I returned, I discovered that my computer had taken a trip back to April 2010. I went into Time Machine and “yesterday’s” files are dated April. I went back a month and those files are even older (December). My desktop looks like it did 3 months ago and all my files from April to July have vanished.

    Help, has anyone else experienced this? Any suggestions on how to fix it?

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