A Windows 10 Pro product key is a 25-character alphanumeric code used to verify that your copy of Windows 10 Pro is legitimate and licensed. This key is required when you’re installing or reinstalling Windows 10 Pro on a new computer or after resetting your system. The product key helps Microsoft prevent unauthorized copies of the operating system, ensuring you receive critical updates and security patches.
How to Activate Windows 10 Pro Using a Product Key
To activate Windows 10 Pro with your product key, follow these steps:
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Open Settings: Click on the Start menu and go to “Settings.”
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Navigate to Update & Security: In the Settings window, select “Update & Security.”
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Click on Activation: From the left-hand menu, select “Activation.”
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Enter the Product Key: If your system is not activated, you will see an option to “Change product key.” Click on it and enter the 25-character product key.
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Complete the Activation Process: Follow the on-screen prompts to complete the activation process.
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