When Windows 10 is installed, it continues to store your product key in the registry. This can be useful if you do not remember what key you used on your current installation. Also, if you have lost your product key, it may be useful to retrieve your product key with a third-party tool or with a simple PowerShell script.
At the same time, your Windows 10 product key is at risk of being stolen. If you are concerned about your product key from being stolen (ie with some malware), you may want to remove it from the base permanently register. This operation is safe and will not affect your operating system activation status. Follow this tutorial to learn how you can delete the product key stored in Windows 10. The same trick will work on Windows 8.1, Windows 7 and Windows Vista as well.
- Open an elevated command prompt
- In the elevated command prompt you just opened, type the following:.!
slmgr / cpky
This is
Here are some explanations for those who want to understand what exactly is happening. slmgr means Software License Manager, it is a Visual Basic script in your Windows System32 folder to manage the granting of licenses related operations. The / cpky slmgr told to delete the product key
Board Bonus :. Even if the product key is deleted, you can still see the partial product key should you ever need to know that affects a particular Windows installation. To view the partial product key, at an elevated command prompt, type:
slmgr / dli
Look how it displays the partial product key. If you have a bunch of Windows licenses, this information is sufficient to identify which key product has been used for this installation.
Note that if you install a volume license edition of Windows, only the partial product key can be visible using slmgr / dli. slmgr / cpky is not necessary.
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