In case Windows is already in place on your computer, chances are that the product key is stored somewhere in the system. You can access it through Command Prompt, PowerShell commands, or through special key finder programs which read the data of the stored licenses. In others, particularly with newer PCs the key is imprinted within the motherboard firmware and is automatically recognized during installation. Knowledge ofhow do i find my Windows 10 product key can assist you in re-installing windows, updating your system or in troubleshooting the activation issues following changes in hardware.