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September 02, 2009

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I had an evaluation copy of Windows 2008 R@. Then i upgraded to the RTM build.
When I tried to activate, i got an error
Error: 0xC004C003 The activation server determined the specified product key is blocked

I followed the procedure you mentioed above ant it worked.

Thanks !

Hrishi--

Glad it worked for you! This post, and my first post on KMS, have proven to remain very popular. I'd say 30-40%+ of my blog traffic are to these two posts alone!

--DW

I am downloading Windows Server 2008 R2 Build 7268 ISO ,which has a Product key.I am downloading it on a new server,how do i activate the product key.

Alfred--

Are you wanting to use an MAK or a KMS key? If KMS, do you already have a KMS infrastructure and are getting an error of somesort? If MAK, what have you tried and what errors are you getting?

--DW

Thank you. The info on the blocked keys solved my problem.

Frank--

You're welcome! Glad it was helpful!

--DW

Hi,

Windows 2008 Std activation (MAK) has failed returning Error: 0xC004C003

Tried to ring MS, but they asked me to talk to my Sys Admin.

Any advise?

Rio--

I have the same advice. If YOU are the Sysadmin, then double check your keys / activation count using the volume licensing service center. You may have run into a "full" MAK, or, your MAK may have been compromised, etc.

--DW

Hi,
remember a simply error: are date and time correct? If date /time are in future it takes the same effect (error 0xC004F074)!
Settling the correct time enables the registration.
-egs32

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