It sounds like you're experiencing issues with Windows 11 activation after significant hardware changes, which can happen due to the way Windows ties its activation to the hardware configuration of the device. Here are some steps you can take to try to reactivate Windows 11 Pro:
- Check Activation Status: Go to Settings > Update & Security > Activation to see the current status. If it indicates that Windows is not activated, you may see an error code.
- Use the Activation Troubleshooter: If you see an option for "Troubleshoot" under the Activation settings, click on it. This can sometimes resolve activation issues by allowing Windows to detect the changes and revalidate your license.
- Re-enter the Product Key: If you have the original product key for your Windows 11 Pro, you can try re-entering it. Go to Settings > Update & Security > Activation, and select "Change product key."
- Sign in with the Correct Microsoft Account: Ensure that you are signed in with the Microsoft account that was used to purchase or activate Windows 11 originally. This account should have the license associated with it.
- Contact Microsoft Support: If the above steps do not resolve the issue, you may need to contact Microsoft Support for assistance. They can help you with reactivation, especially if they can verify that the license is still valid and associated with your account.
- Consider Hardware Changes: If the hardware changes are extensive, Windows may require a new activation. If you continue to have issues, you might need to consider purchasing a new license, but this should be a last resort after exhausting other options.
It's important to note that Windows requires a firmware-embedded activation key for automatic activation after hardware changes, and if that key is not present or the device configuration is significantly altered, reactivation can fail.
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