How To View Windows Serial Key

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A short guide explaining how to recover your Windows 10 product key / serial number from an existing installation including OEM, preinstalls and upgrades. How to retrieve the Windows 10 Product Key from BIOS / UEFI / Windows Registry. February 6, 2017 February 6. View all posts by Ryan. We don’t have access to all the features of the windows 10. The product key will register our windows 10 and make our windows 10 smooth. So moving onto Windows 10 Pro Product Key, Is it essential for all of us to register the windows 10? Many users want to activate Windows 10 Pro Product Key. Click the entry for your version of Microsoft Windows to reveal the key and other information about the installation. The key will be listed under ‘CD Key’ on the right side of the window.

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Ever since the release of Windows 8, all PC manufactures have started embedding product license key into the BIOS/EFI. That is, computers pre-installed with Windows 8, Windows 8.1, and Windows 10 don’t display product key information or Certificate of Authenticity (COA) sticker on the backup of the computer or in the battery bay.

Instead, PC manufactures have started embedding product key into the BIOS or EFI, and it can be seen by entering the BIOS/EFI of your computer.

While most users will never need to retrieve product key as the Windows image provided with the computer will automatically retrieve the product key from the BIOS or EFI during the installation. But if your have downloaded a fresh copy of Windows 8.1 or Windows 10 from Microsoft and want to install the same using the same product key, you need to take the help of third-party tools to recover the product key from the BIOS or UEFI.

About a year ago, we shared a free tool to recover Windows 8.1 product key from BIOS. This time around, we have another excellent utility to retrieve Windows product key from BIOS or EFI.

Windows 10 Product Key Tool

Windows 10 Product Key Tool is a newly released utility from the developer behind the very popular EasyBCD software. With Windows 10 Product Key Tool, one can easily recover Windows 7, Windows 8, Windows 8.1, and Windows 10 product license keys from the BIOS or EFI in a jiffy.

To read Windows 7, Windows 8.1, or Windows 10 product key from the BIOS or UEFI, simply run OEM Product Key Tool on your PC. Upon running the tool, it will automatically scan your BIOS or EFI and display the product key. After recover the key, we recommend you store the product key in a safe location.

Windows 10 Product Key Tool is compatible with both 32-bit and 64-bit versions of Windows 7, Windows 8.1, and Windows 10. Visit the following page to download the latest version of OEM Product Key Tool.

Note that you might get “Unable to open MSDM table!” message if the product key isn’t present in your PC’s BIOS/EFI. If you’re getting this message, the product key sticker must be located somewhere on your PC. Look for it!

Windows 10 requires activation to verify you're running a genuine copy; a unique product key is used to ensure the a single licensed copy of Windows isn't being used on more than are allowed.

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Occasionally, you may have to change the product key. If you're getting Windows 10 for the first time and a product key wasn't provided during the installation, or a generic key was used to upgrade, you'll need a new valid product key to activate the operating system.

In this Windows 10 guide, you'll learn five ways to bring up the Windows activation tool to change the product key on your computer.

How to change Windows 10's product key using Settings

  1. Open Settings.
  2. Click on Update & security.
  3. Click on Activation.

  4. Click the Change product key link.

  5. Type the 25-digit product key for the version of Windows 10 you want.

  6. Click Next to complete the process.

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If the activation process completes successfully, you'll get the 'Windows is activated' message.

How to change Windows 10's product key using Control Panel

  1. Use the Windows key + X keyboard shortcut to open the Power User menu and select System.

  2. Click the Change product key link under the Windows activation section.

  3. Type the 25-digit product key for the version of Windows 10 you want.

  4. Click Next to complete the process.

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Similar to the Settings app, if the activation process completes successfully, you'll get the 'Windows is activated' message.

How to change Windows 10's product key using Command Prompt

  1. Open the Start menu.
  2. Search for Command Prompt.
  3. Right-click the result and select Run as administrator.

  4. Type the following command using your 25-digit product key and press Enter:

    slmgr.vbs /ipk <enter your 25-digit product key here>

If you typed the product key correctly and the process completes successfully, you'll see a dialog box reading 'Installed product key YOURP-RODUC-TKEYX-XXXXX-XXXXX successfully.'

How to change Windows 10's product key using SLUI 3

WindowsKey
  1. Use the Windows key + R keyboard shortcut to open the Run command.
  2. Type slui.exe 3 and click OK to open the Windows activation client.

  3. Type the 25-digit product key for the version of Windows 10 you want.

  4. Click Next to complete the task.

If the activation process completes successfully, you'll get the 'Windows is activated' message.

How to change Windows 10's product key using CHANGEPK

  1. Use the Windows key + R keyboard shortcut to open the Run command.
  2. Type changepk.exe and click OK to open the Windows activation client.

  3. Enter the 25-digit product key for the version of Windows 10 you want.

  4. Click Next to complete the task.

If the activation process completes successfully, you'll get the 'Windows is activated' message.

Alternatively, you can use change the product key using changepk.exe using the Command Prompt as well. Here's how:

  1. Open the Start menu.
  2. Search for Command Prompt.
  3. Right-click the result and select Run as administrator.

  4. Type the following command using your 25-digit product key and press Enter:

    changepk.exe /ProductKey <enter your 25-digit product key here>

Wrapping things up

While for the most part, you'll be using the Settings app to change the product key on Windows 10, if the option isn't available or if you're looking to create a script to change the product key on your computer, it's good to have different alternatives.

If you're trying to upgrade the operating system by purchasing a new license from the Windows Store, everything regarding the product key will be handled automatically for you.

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Also, remember that you must be signed in with an administrator account to change your system's product key, and you'll need an internet connection to complete the activation.

In the case, you recently made significant hardware changes to your PC, and Windows 10 won't activate, you can use the Activation Troubleshooter to re-activate your copy of Windows 10.

How To View Windows 10 Serial Key

Although this guide is specific to Windows 10, the Control Panel, slui.exe, and slmgr.vbs methods that we're showing you here will work to change the product key on Windows 8.1 or Windows 7.

More Windows 10 resources

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For more help articles, coverage, and answers on Windows 10, you can visit the following resources: