Can't Activate Microsoft Windows Server Datacentre 2022

Question

I can't activate my Windows Server Datacentre 2022 Key. It's showing this error 0xC004C003 .

Can it be for someone else used/using the key?

Answer 1

Hello  Soumen Pyne,

Thank you for posting in Microsoft Community forum.

Error code 0xC004C003 indicates that the activation server has determined the specified product key is blocked. This can happen if the key has already been used on another machine or if it's not valid. Here are some steps you can take to resolve this issue:

1. Verify the Key:

Ensure that the product key you are using is correct and legitimate. If you received the key from a third-party vendor, it might not be genuine or could have been blacklisted.

1. Contact the Vendor:

If you obtained the key from a vendor, contact them to confirm the key's legitimacy and see if they can provide a replacement key.

1. Check Licensing Terms:

Make sure that your license key is specifically for Windows Server 2022 Datacenter and not for another version or edition of Windows Server.

1. Clear and Reinstall the Key:

You might need to clear the current key and then attempt to reinstall it. Open Command Prompt as an administrator and run the following commands:

slmgr.vbs /upk

slmgr.vbs /ipk [your-product-key]

slmgr.vbs /ato

Replace [your-product-key] with your actual product key.

I hope the information above is helpful.

If you have any question or concern, please feel free to let us know.

Best Regards,

Haijian Shan

Answer 2

Thanks