Hello, thank you for reaching out to Microsoft Q&A.
I understand that you are having trouble activating Windows 11 Home on your device.
This error typically occurs when volume license keys (KMS activation type) are used to activate Windows. These keys are intended only for organizations and not for home users. If you are using Volume license keys for your personal use, it comes under violating the Microsoft software licensing terms.
- May I please know how you activated Windows previously? Did you purchase the product key from the Microsoft Store or from a third‑party retailer, or was the product key already preinstalled on your device?
- Have you installed recent BIOS updates for your device or made recent hardware changes to your computer?
Please open Command Prompt as an administrator.
Run the command below and press Enter.
slmgr /dlv
Then, post a screenshot of the resulting dialog box.