Hello Uday,

Then, you don’t need any Windows 10 activator or Windows 10 Product key/ serial key. How to Activate Windows 10 if Windows 10 Product Key does not Work? (Windows 10 Activator) For example, first, it is not possible that these keys don’t work but still if it happened that key issue. Then you can use Windows 10 loader to activate Windows 10. Windows 10 has now become the world’s most popular operating system as 400 million users. Windows 10 was released on July 29, 2015 and it comes with great new features that let you do things easily and fast.

September 2018 Does Windows 8.1 Serial Key Work For Windows 10 Free

Thank you for contacting Microsoft Community.

Yes it works. Starting with the November update, Windows 10 (Version 1511) can be activated using some Windows 7, Windows 8, and Windows 8.1 product keys. During the free upgrade, you can use a valid Windows 7, Windows 8, or Windows 8.1 product key to activate Windows 10 (Version 1511 or higher). The following types of product keys are supported:

• Product keys included in the packaging or the Certificate of Authenticity (COA) attached to your PC that came installed with Windows.

• Product keys included in the confirmation email you received after buying Windows from an online retailer.

• Product keys included in the box the Windows DVD came in.

• Product keys you bought using Windows Anytime Upgrade or Get Genuine Windows.

• If you bought a Windows 8.1 Pro Pack product key, you can use it to activate Windows 10 Pro.

After Windows 10 is activated, a digital entitlement will be given to your device based on the product key you entered. This means that you’ll no longer need to enter a product key to activate Windows 10 on this device.

On some devices that came pre-installed with Windows 8 or Windows 8.1, the product key is provisioned in the device firmware. On these devices the product key will be verified during setup, and then the appropriate edition of Windows 10 will be installed.

Note:

• Some Windows 7, Windows 8, and Windows 8.1product keys can't be used to activate Windows 10, such as product keys for volume licensing, including Generic Volume Licensing Keys (GVLK) and Multiple Activation Keys (MAK), and Windows 7 Enterprise, Windows 8 Enterprise, and Windows 8.1 Enterprise.

September 2018 Does Windows 8.1 Serial Key Work For Windows 10 64

September 2018 Does Windows 8.1 Serial Key Work For Windows 10 Download

Keep us posted if you require further assistance.