Greetings!
This is Tin, I can see here that you would like to know if your Windows is legit or original. Based on the screenshot that you've sent and it says We weren't able to activate Windows on this device, it means your Windows is currently not genuine or unlicensed yet as it's not activated.
You need to activate your device, if you have purchase license on MS Store or you recently redeemed a Product key, please sign in your account by going to Settings then Accounts then Your Info, please sign in your MS Account and then it should be activated, or run the Activation Troubleshooter again.
If you haven't redeemed your key yet, please press Windows key + R and type slui 3 then hit enter. Please enter your key there.
Thank you,
Tin