Windows 10: Error code: 0xC004C008

I just assembled my new PC and installed Windows 11 from the installation disc, but it is now telling me that the product key was already used on another device. I just opened the package today so I am unsure how that could have happened. Please help, I need to activate Windows.

:)

 

Error code 0xC004C008

Hi,

The error code 0xC004C008 means that the product key that you are trying to use is already activated on a different device. For us to effectively assist you, can you confirm if you have already activated the product key on another device
before building a new computer? Or was it purchased brand new the same time that you have built the new computer?

Meanwhile, we suggest checking this link
Get help with Windows activation errors for further details regarding the error code that you are receiving.

Let us know if there are other concerns.

 

Can't activate Windows 11 (Error code 0xC004C008)

Error code 0xC004C008 means SL_E_CHPA_MAXIMUM_UNLOCK_EXCEEDED

The activation server reported that the product key has exceeded its unlock limit.

Contact the retailer of the key.

Greetings

 

Windows 10 activation failed with error Code 0xC004C008

Hi,

The error code 0xC004c008 is associated with the issue of the product key already been used on another computer. For us to get a better understanding of the issue and provide a resolution suitable to your concern, kindly provide the following information:

• When and where did you purchase the installation disk.
• Is this the first time you're going to activate Windows using the disk?

Meanwhile, you can check this article about common Windows activation errors and how to solve them.

Looking forward to your reply.