Windows could not be activated

After installing Windows Server 2008 to one of my development server I got the following error: Windows could not be activated.

Exact details of error:

Windows could not be activated.


DNS name does not exist.

As it turns out this is problem with volume licensing. You have to activate your Windows by inserting key again (Control Panel –> System). After that activation succeeds. As you can read from Chapter Zero then this error occurs also with Windows Vista.

Gunnar Peipman

Gunnar Peipman is ASP.NET, Azure and SharePoint fan, Estonian Microsoft user group leader, blogger, conference speaker, teacher, and tech maniac. Since 2008 he is Microsoft MVP specialized on ASP.NET.

    2 thoughts on “Windows could not be activated

    • September 23, 2009 at 12:44 pm

      Problem also exists in windows 7

    • July 20, 2010 at 12:46 pm

      The solution, as weird as it is, is to right click your computer, go properties, then select the link to “Change your Windows key.” But you don’t…you re-enter the one you originally used. Voila! Your activation will now go through without a hitch.

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