Windows product key disapeared

Hello, I got a herobox pro with windows 10, but once I installed windows 11 the key disappeared, I tried some solutions online but none of them worked, its error code 0xC004C003. It shows up in settings but it doesn’t show up when I looked for it in cmd. How can I fix it? I don’t need to revert to win 10 then reactivate it then reinstall win 11 do I?

Hello, please try to restore win10, thank you

This worked on my CHUWI HeroBook AIR of two months old.

Find Windows 10 Product Key Using Command Prompt

In case of new computers, Windows 10 Product Key is embedded
right into the [UEFI/BIOS]firmware and won’t be available on the
packaging or stickers attached to the computer.

1. Right-click on the Start button and type CMD in the search window.

2. In Run Command window, type (or copy the next line into it)
wmic path softwarelicencingservice get OA3xOriginalProductKey
and press the Enter key on the keyboard of your computer.

Hopefully You can find it this way also !

Hello, please contact our official after-sales email, thank you