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    Hi,

    I have a student product key, and I activated my windows 2008 in the morning. However, because of some reason, I re-installed the windows server that afternoon without hardware change, and when I tried to activated it again, it came to an Error Code: 0xC004C020.

    What can I do to have my windows activated?

    Thank you~
    Friday, January 2, 2009 12:47 AM

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    Hi,

     

    The Error 0xC004C020 means the Activation key has exceeded its limit as described in the Microsoft Knowledge Base article below. As you have activated the server once, it is expected behavior.

     

    KB 942969 http://support.microsoft.com/kb/942969/en-us

     

     

    In this case, you need to call Activation Center to activate the server.

     

    Please perform the following the steps:

     

    1, Run the command "slui 4" from the Elevated Command Prompt

    2, Please choose the nearest location where you live, click next

    3, Call the Activation Department with the telephone number provided by the last step

    4, Provided them with the Installation ID and they generate a corresponding Confirmation ID.

    5, Enter the Confirmation ID

    You will be able to activate the Windows Server 2008 Successfully.

     

    For more information about the Windows Activation, please refer to:

     

    933177  You may be unable to activate Windows Vista over the Internet by using the Windows Activation Wizard

    http://support.microsoft.com/default.aspx?scid=kb;EN-US;933177

     

     

    Best regards,

    Vincent Hu

    • Marked as answer by Ray Hoo Saturday, January 3, 2009 11:33 PM
    Friday, January 2, 2009 8:58 AM

All replies

  • Question
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    5
    Sign in to vote
    Hi,

     

    The Error 0xC004C020 means the Activation key has exceeded its limit as described in the Microsoft Knowledge Base article below. As you have activated the server once, it is expected behavior.

     

    KB 942969 http://support.microsoft.com/kb/942969/en-us

     

     

    In this case, you need to call Activation Center to activate the server.

     

    Please perform the following the steps:

     

    1, Run the command "slui 4" from the Elevated Command Prompt

    2, Please choose the nearest location where you live, click next

    3, Call the Activation Department with the telephone number provided by the last step

    4, Provided them with the Installation ID and they generate a corresponding Confirmation ID.

    5, Enter the Confirmation ID

    You will be able to activate the Windows Server 2008 Successfully.

     

    For more information about the Windows Activation, please refer to:

     

    933177  You may be unable to activate Windows Vista over the Internet by using the Windows Activation Wizard

    http://support.microsoft.com/default.aspx?scid=kb;EN-US;933177

     

     

    Best regards,

    Vincent Hu

    • Marked as answer by Ray Hoo Saturday, January 3, 2009 11:33 PM
    Friday, January 2, 2009 8:58 AM
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    Thank you so much~
    I will try.
    Thank you~
    Saturday, January 3, 2009 11:33 PM
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    Did the trick for me. Thanks a lot!
    Thursday, May 22, 2014 11:46 PM
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    This worked for me too.  Thank you so much!!!    FYI - I used the smartphone option and it worked like a charm.
    Thursday, July 14, 2016 7:17 PM