Activating Windows 8 AFTER completing installation

I recently encountered a user who had completed an installation of Windows 8 but hot not yet entered their Product Key. As a result, the OS was displaying messages telling them to Activate the product. Furthermore, they reported that clicking Activate in the System settings of the Control Panel yielded the following error:

“DNS name does not exist.”

windows 8

I wasn’t sure what this message meant, but I noticed that the last 5 characters visible on the Activation Center screen (see below) were incorrect. So I got the correct key and figured I’d give it a try.

windows 8

To my surprise, I found that in Windows 8 Microsoft removed the GUI link to the window which allows us to change the Windows Product Key. Instead, you have the two following options.

1. You can launch a window that will allow you to key the new code by running the Command Prompt ”As Administrator”, typing “slui 3”, and pressing enter.

windows 8

2. You can enter the new Product Key at the Administrator Command Prompt using the following command: slmgr.vbs –ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

Why Microsoft made this harder on us, I do not know. But, hopefully, this may save you some time.



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