How to change product key on Windows 8.1

«How to change the product key on the Windows operating system? “is one question that is often asked by users of computers.

Version 8.1 of the Windows operating system (like its predecessor) requires entering the license key, with which the use of the OS will be fully legal (lawful). And the need to change product key can occur for several reasons. For example, you may want to use a different product key, or maybe you just need to activate the newly installed Windows 8/8.1 by replacing the generic key used to install Windows is the original windows 8.1 product key.

There are three ways that you can change the product key, and hereinafter we show how each of them works.

Through system properties

Firstly, open system. To do this, right-click on the icon “this computer”, and then click Properties on the shortcut menu. In Windows you can open this window of 8.1 and in other ways, for example, clicking the right mouse button on the “start” button and then selecting “system” item in the menu that opens, WinX.

At the bottom of the System, find the link “change product key” and click on it.

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Now, all you have to do is enter the 25-digit product key. The operating system will automatically connect to Microsoft for activation.


The above method is very simple and will work for most users, but if the first way you have any problems, try the following.

Open the search bar keyboard shortcut Win + S, type “Slui.exe” (without quotation marks) and press Enter.
As a result, you will see the same window prompting you to enter a 25-character product key. And then just follow the simple procedure to activate Windows.

Via the command line

If none of the above methods does not work, this definitely will be. First you need windows key sale to open a command prompt window with administrator privileges.

Open the search bar and type “cmd”. Next, right-click on the command prompt in the search results and select “run as Administrator”. The same can be done even faster if you use the above menu WinX opened by right-clicking on the Start button or by pressing Win + X shortcut keys.

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In the command prompt window, type the following command, and then press Enter:


Replace your key. For example, if your product key is ABCD-EFGH IJKLM-NOPQ RSTU—VVWXY, type slmgr.vbs/ipk ABCD-EFGH IJKLM-NOPQ RSTU—VVWXY and press Enter.