You can install a clean copy of windows 10 on a new formatted hard drive without the need of windows installation CD.
all you need is 4 GB thumb drive/memory stick/flash drive.
Please note that the content of your Memory Stick will be rewritten, so before saying sayonara to your Memory Stick content, save it if you need it!
- Download Microsoft Windows 10 media creation tool here
- Run the tool and select “Create Installation medial for another PC”
- Select Language,architecture and edition – this is were you usual click Next.
- Chose USB flash drive and click Next
- Select the drive and click Next
- At this point the tool starts creating the media.
- When the media is ready click Finish.