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I have a copy of windows 2008 r2 which is genuine, I am using it as a developmnt environment. I have it set up as a DC. When I select "Activate windows now" / "Activate windows online" it keeps throwing message "DNS name does not exist".

I suspest this is to do with KMS but unsure how to proceed

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migrated from Dec 6 '10 at 20:25

This question came from our site for professional and enthusiast programmers.

Are you able to clear the dns cache and resolve other common endpoints? Can you get the target IP and tracert to get to the site? – StingyJack Dec 6 '10 at 20:27

Was this an MSDN or a VLK copy of Windows? If so, see KB 929826. The short:

Change the product key to a Multiple Activation Key (MAK) by following these steps:

  1. Click the Start button, click All Programs, click Accessories, and then right-click Command Prompt.
  2. Click Run as administrator.

    If you are prompted for an administrator password or for confirmation, type the password or provide confirmation.

  3. At the command prompt, type the following command, and then press ENTER:

    slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

    Note In this command, the xxxxx-xxxxx-xxxxx-xxxxx-xxxxx placeholder represents your MAK product key.

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