Can I upgrade Windows 11 Home to Pro without product key?

Yes, using the generic key is a well-documented two-step method to upgrade Windows 11 Home to Windows 11 Pro. first, changing the edition with a Microsoft-provided generic key, and second, activating it using the open-source Microsoft Activation Scripts (MAS) tool.

Microsoft publishes a generic product key specifically for upgrading from Home to Pro. This key is VK7JG-NPHTM-C97JM-9MPGT-3V66T . The important thing to know is that this key will not activate Windows; it only unlocks the Pro features.

To perform the upgrade Windows 11 Home to Windows 11 Pro using this method, follow these steps:

1. Disconnect from the internet. This is a critical step. If you stay connected, Microsoft's servers may reject the generic key, causing an error .
2. Open Settings > System > Activation.
3. Click Change product key and enter the generic key VK7JG-NPHTM-C97JM-9MPGT-3V66T .
4. Follow the on-screen prompts. Your PC will restart and display an "Adding features" screen as the upgrade Windows 11 Home to Windows 11 Pro process completes .
5. Once rebooted, your system will be Windows 11 Pro, but it will be in an unactivated state .

If you want to upgrade Windows 11 Home to Windows 11 Pro, the generic key is the officially supported way to initiate the edition switch, MAS is an open-source tool. While widely used, it is not officially endorsed by Microsoft and is often described as a tool for "learning and testing" . Use it at your own discretion.