Hi 𝕲𝕺𝕯,
Thanks for reaching out to Microsoft Q&A Forum. I understand you are encountering Windows activation error 0xC004F213 after installing Windows on a new computer, even though your previous device was running Windows 11 Home.
Please make sure you already tried the Q&A Assist steps. In addition, I would like to narrow this down a bit to better understand the scenario:
- Are you currently signed in on the new device using the same Microsoft account that was used on the previous Windows 11 Home device?
- During installation, did you confirm that Windows 11 Home (not Pro) was installed on the new computer?
In the meantime, you can try these steps:
1, Verify the installed Windows edition
- Open Settings > Go to System > Select About
- Confirm that the edition shows Windows 11 Home
2, Use the Activation Troubleshooter
- Open Settings > Go to System > Select Activation > Click Troubleshoot
- If prompted, select I changed hardware on this device recently and sign in with your Microsoft account
3, Re‑link the digital license by signing in again
- Open Settings > Go to Accounts > Select Your info
- Sign out, then restart the device
- Sign back in using the Microsoft account previously linked to the old device
4, Check current activation status
- Open Command Prompt as administrator
- Run
slmgr /xpr - Close the window after the status appears
5, Ensure the device is connected to the internet and fully updated
- Open Settings > Go to Windows Update
- Select Check for updates and install all available updates
In short, this issue occurs because Windows does not automatically transfer a license from one computer to another unless the license type allows it and it is properly linked to your Microsoft account. A clean installation on new hardware is treated as a new device, which is why Windows reports that no product key was found.
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