[Solved] Windows 10/11 Activation error 0xC004C003

 Windows 10/11 Activation error 0xC004C003

When you are trying to activate your Windows 10/11, you may see Windows Activation Error Codes on your computer screen Error 0xC004C003, It has been reported by many users. This problem can mostly occur because the key is invalid. With this error code, you may see the following message:

0xC004C003, The activation server determined the specified product key is blocked

There is another error message with 0xC004C003 too:

We can’t activate Windows on this device because you don’t have a valid digital license or product key. If you think you do have a valid license or key, select Troubleshoot below. Error code: 0xC004C003

If you manually entered a product key in order to activate Windows 10/11, then it might not be valid for activation. In this case, you’ll have to use a different key to activate Windows.

If you purchased this key contact the vendor and ask them to replace it or offer you a refund.

Or you can get a legit Windows 10/11 Pro Key from Keyingo.com, it is retail version, and you wont have problems with this error !