Windows 10 offers an activation section that you can use to change the product key. It is useful when you are upgrading to the following version of Windows or reactivating after a reinstall.
However, if you attempt to change the Windows product license key, you find that the change product key link isn’t available or noticeable; you might need to check if your Windows is enacted first because this generally happens if Windows has not been actuated at this point. If that is not the situation, then follow the method ahead to change Windows 10 product key.
Change product key link not available in Windows 10
You can initiate Windows 10/8/7 using the SLUI order or using the SLMGR. While the previous dispatches a similar interface as while clicking on the Change product key link, the last permits it from the order prompt. If you don’t recollect the product key, and if you have the old installation, find out how you can find the key.
1] Software Licensing User Interface or SLUI
Open the Run prompt ( Win + R), and afterward type SLUI and press the Enter key. It will dispatch the “Enter a product key” action window.
Now here you can enter the Windows Key to actuate window or update.
2] SLMGR or Software Licensing Management Tool
It is a VBS file that you can execute from the Command Prompt and use the Windows key along with it to actuate Windows. It is a genuinely perplexing tool that is used as the Volume Activation Management Tool in big business for numerous PC activation.
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Run the following order:
slmgr.vbs /ipk <Your Windows product key>
slmgr.vbs [<ComputerName> [<User> <Password>]] [<Options>]
That said if the keys don’t work, try to approve your Windows 10 product key.