If you have a laptop you might need to open up the cover to locate this label.The OEM label will look like the one below.
This license key can be re-used if you wish to re-install windows 10 on the existing machine. Typically older machines come with what is called an OEM Product key. (Please note I have blurred out my windows 10 product code for obvious reasons) How To Find an OEM Product Key In Windows 10 You can run this command by following these steps You can extract the windows 10 product key from any preinstalled machine by running a command from CMD.