Windows 10: unable to activate windows using Product key

Hi Team,We have a valid activation key, but while attempting to activate Windows using this key, we’re encountering an error stating that unable to activate windows.Kindly assist us in resolving this issue. Please let us know if any additional information is required from our side.

:)

 

Windows 10 Product Key for a Free Upgrade

Hi,

The product key is important to activate and install Windows 10 to your device. Regarding your concern, let's try to isolate the issue and see what's causing you unable to use the product key to activate and install your Windows 10. Kindly provide the following
information:

• Where did you purchase the product?
• What is the error message you received after entering your product key?
• What troubleshooting steps have you tried?

 

Windows 10 product keys and activation - and the KMS angle

Changing the product key to the generic Windows 10 product key will reset activation to the standard retail channel for activation. It might just activate (if there was a previous digital license for Windows 10 for that computer established with Microsoft). Once Windows 10 is back on the retail activation channel, then more than likely changing the product key to the Windows 8 product key using the same method may work.

 

Activate windows 10 after re-installing (I have lost my product key)

I own a Lenovo T430 laptop. In 2017, I installed Windows 10 using my original Windows 7 product key. Unfortunately, I cannot find that product key anymore. I need to re-install windows 10. Will it be automatically activated after the installation, if I skip the step of asking the product key during the installation?

In my opinion, I believe that my laptop will have a digital entitlement stored on the Microsoft Activation Servers and this will not be a problem. Is that true?

If not, please suggest me a solution or a workaround.