If Windows 11 Pro was installed but activation is failing, the supported paths are:
- Check the current edition and activation state:
- Start > Settings > System > Activation
- Confirm the device now shows Windows 11 Pro.
- Check the message next to Activation state.
- If a valid Windows 11 Pro product key is available:
- Go to Start > Settings > System > Activation
- Next to Change product key, select Change
- Enter the 25-character Windows 11 Pro key
- Select Next to start or complete the upgrade and activation
- If activation failed after a significant hardware change, or the device previously had a digital license:
- Sign in with an administrator account
- Go to Start > Settings > System > Activation
- If available, select Troubleshoot
- Select I changed hardware on this device recently
- Sign in with the Microsoft account linked to the digital license
- Select the current device and choose Activate
- If the device says the license does not match the installed edition:
- In Settings > System > Activation, verify whether the license is for Windows 11 Home or Windows 11 Pro
- A Windows 11 Home license will not activate Windows 11 Pro
- In that case, either install Windows 11 Home again or upgrade properly to Windows 11 Pro using a Pro product key
A personal Microsoft account is supported for linking a digital license. The activation guidance only requires that the Microsoft account be linked to the Windows digital license; it does not require a work email.
If the activation page shows Windows is activated with a digital license linked to your Microsoft account, the account is already linked. If not, add the Microsoft account from Settings > System > Activation > Add an account.
References:
- [Windows 11](https://support.microsoft.com/windows/deployment/install-upgrade/upgrade-windows-home-to-windows-pro#upgrade-to-windows-11-pro-manually)
- [Windows 11](https://support.microsoft.com/windows/activation/activate-windows#link-your-microsoft-account-to-windows-11-for-activation)
- [Windows 11](https://support.microsoft.com/windows/activation/activate-windows#reactivate-windows-11-after-a-hardware-change)
- [Windows 11](https://support.microsoft.com/windows/activation/reactivating-windows-after-a-hardware-change#if-you-have-a-digital-license,-run-the-activation-troubleshooter)
- Why can't I activate Windows? | Microsoft Support