1
Where did you get your Windows licence, did you purchase a full retail Windows licence from Microsoft or from a 3rd party retailer, and if so, do you have the original product key?
2
If you have your original product key, download the free ShowKeyPlus app from the Microsoft Store.
On the left of that app, click 'Check Edition', then enter your product key into that app.
Please provide a screenshot of that app window and please hide your product key in the screenshot.