To help us to help you and to properly get answers to your post you should include some minimum information.
1. Device type. ie Desktop, Laptop, Tablet, Surface, Phone
2. Who made it and model, RAM size, HDD size. If home built what type motherboard, Intel, AMD, other
3. OS type, Home, Pro, Enterprise, 32 bit, 64 bit, etc
4. Current build. Hit the WIN key, type winver, hit Enter.
5. Where is this happening on the computer, Boot, Screen, App, etc
6. What error are you getting if any?
7. What build are you trying to get?
8. Any 3rd party antivirus ever installed.