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after my ssd crashed, I has to reinstall my windows, then I reentered my windows 7 64bit SP1 from MSDNAA and it says: "a problem ocurred. Error 0xC004C020"

How should I proceed?

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  • how many times have you used the key?
    – Sathyajith Bhat ♦
    May 25, 2012 at 4:07
  • once to activate first. Then again when I reinstalled my windows after the crash
    – Andre Cytryn
    May 25, 2012 at 20:18

2 Answers 2

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The error you refer to, Error 0xC004C020, is due to: "The activation server reported that the Multiple Activation Key has exceeded its limit." -- Microsoft Support.

The same page goes on to say the remedy or possible workaround is: "Contact the Product Activation Call Center to obtain a new MAK or to increase the activation limit on the existing MAK". Instructions on how to get the Product Activation Call Center phone number is found at this Microsoft Support page.

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To solve this issue I clicked on the option to call the MS service and activate it. Windows gives a code, that you input on your phone and then you receive another code to input on your computer. This worked.

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  • You can select your answer as the correct answer.
    – SgtOJ
    May 26, 2012 at 14:48
  • Yeah I know, just waiting for the cooldown
    – Andre Cytryn
    May 26, 2012 at 20:42

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