When installing Windows 11 or 10, a product key is usually entered to activate the system. This key is a unique 25-character alphanumeric code that validates your license and grants access to all Windowsfeatures. But what if you've lost or forgotten this key? Don't worry, there are several ways to retrieve it.

Find your Windows 11/10 product key using the command prompt

A simple and effective method for experienced users

1. Open the command prompt as administrator.
2. Type the following command and press Enter: wmic path SoftwareLicensingService get OA3xOriginalProductKey
3. The Windows 11/10 product key will be displayed in the console.

Simplified technical explanation

The command prompt provides access to advanced system tools and information. The `wmic` is used to query the Windows Management Instrumentation (WMI), a component that provides information about your computer's software and hardware components. The `SoftwareLicensingService` Windows License Management Service , and the `get OA3xOriginalProductKey` retrieves the original product key stored in the Windows .

Retrieve a Windows 11/10 product key using PowerShell

An alternative for users familiar with PowerShell

1. Open PowerShell in administrator mode.
2. Type the following command and press Enter: (Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey
3. The Windows 11/10 product key will be displayed in the console.

Simplified technical operation

PowerShell is a more powerful scripting and administration language than the command prompt. The Get-WmiObject uses the same principle as the wmic to query the WMI. Selecting * retrieves all the properties of the SoftwareLicensingService , and the OA3xOriginalProductKey extracts the original product key.

Use a third-party tool to find your Windows 11/10 product key

A practical solution for less experienced users

Several free tools, such as ProduKey or Belarc Advisor Windows product key . Download and use one of these tools by following the instructions provided.

Precautions and limitations

• Download only tools from trusted sources to avoid malware.
• Some tools may not work correctly on all versions of Windows.
• Make sure you correctly identify the Windows 11/10 product key among the information displayed by the tool.

Check your purchase receipt or email

Simple solution for recent purchases : If you recently purchased Windows 11/10, the product key is usually found on your purchase receipt or in your confirmation email. Check your documents and look for a 25-character alphanumeric code.

Contact Microsoft support

Last resort if other solutions fail : If you were unable to find your Windows 11/10 product key using the methods above, you can contact Microsoft support. Have your Windows and follow the instructions from technical support.

FAQ: Finding your Windows 11 or 10 product key

What is a Windows product key?

It's a series of 25 alphanumeric characters that allows you to activate Windows 11 or 10 on your computer. It's essential to take advantage of all the operating system's features.

Where can I find my Windows 11 or 10 product key?

Several options are available to you:

• On your PC packaging: If you purchased a computer with Windows pre-installed, the product key is usually found on a label or card inside the box.
• In the confirmation email: If you purchased Windows online, the product key is sent by email after purchase.
• In the Microsoft Store: If you purchased Windows through the Microsoft Store, you can find your product key in your Microsoft account.
• In the Windows : Windows product key in the registry, but this method is more technical and requires following precise instructions.

How do I activate Windows 11 or 10 with my product key?

Here are the steps to follow:

• Open the Settings app.

• Click on " Update and security ".
• Select " Activation ".

• Click on " Edit product key ".
• Enter your product key and click " Next ".
• Follow the on-screen instructions to complete the activation.

I purchased a new product key, but I cannot activate it. What should I do?

Make sure the product key is compatible with the version of Windows you want to install. You can also contact Microsoft support for assistance.

I formatted my computer, but I lost my product key. How can I reactivate Windows ?

If you purchased Windows 10 or 11 with a digital license, your computer will be automatically reactivated after reinstalling the operating system. If you have a traditional product key, you can retrieve it by following the instructions above.

Is it possible to transfer my product key to another computer?

It depends on the type of license you purchased. OEM licenses are tied to a single computer, while commercial licenses can be transferred to another computer.

I lost my computer with my product key on it. What should I do?

If you purchased Windows with a digital license, you can reactivate Windows on another computer using your Microsoft account. If you have a traditional product key, you will need to purchase a new one.

Conclusion

By following the detailed instructions in this article, you should be able to retrieve your Windows 11/10 product key and remove the "Activate Windows " watermark that appears on your desktop . Feel free to try the different methods and contact Microsoft support if you encounter any difficulties.