Changing a Windows 8 Product Key After Installation

Author by Nathan Lasnoski

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 0x3", 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.   Cheers,   Nathan Lasnoski

Nathan Lasnoski

Chief Technology Officer