Hello Ms my name is Farah and I'm an Independent Adviser. I can help you regarding this problem
I assume you mean windows 10 image, You can create one by accessing this website.
https://www.microsoft.com/en-us/software-downlo...
Download windows media creation tool and follow the steps to create windows 10 image and burn it to a usb or dvd.
Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved
Cheers!
Farah