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Changing a Windows 8 Product Key After Installation

I had installed Windows 8 with a product key that wasn’t matching my agreement and I needed to change it before activation, as I was sitting at an annoying “Activate Windows” message.  I naturally went to the properties of the computer and didn’t find any mechanism to change the key, only a repeatedly failed activation process.


I then found a support article that indicates that the “Change Product Key” link is not displayed if Windows is not activated, which appeared to be my exact problem.


Here is the article:



Thankfully there was a resolution.  I open a command prompt and entered:

“slui.exe 0×3″, which popped up the activation key entry screen.  The article also notes you could do this from the search screen as well.


Now I am legally using my Windows 8 ultra-book.




Nathan Lasnoski


Nathan Lasnoski is the Director of Concurrency’s Infrastructure Practice, a Datacenter MVP and a recognized leader in Core Infrastructure Design, SharePoint Infrastructure, Virtualization, and Unified Communications technologies.

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