Error when activating Windows Server 2008
Having just installed Windows Server 2008 Standard from scratch on a brand new server, I was ready to activate Windows.
When installing Windows, I did provide the registration key when asked. But when going through the activation process, I got an error.
I then decided to change the product key and enter again the same key as I did during the registration process and that solved the problem.
Please find below the steps I went through:

Activate Windows 2008

Click on Activate Windows online now

Activating...

Windows activation error

Click on change product key

Enter the product key again

Activating...

Activation successful