How to Create Installation Media for Windows 10 | Microsoft
You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows 10.
To create the installation media, here's what you'll need:
1. A PC with a reliable internet connection. The download time will vary, depending on your internet connection.
2. A USB flash drive or DVD. A blank USB flash drive with at least 8 GB of space, or a blank DVD (and DVD burner). We recommend using a blank USB or blank DVD because any content on it will be deleted. When burning a DVD from an ISO file, if you're told the disc image file is too large, you'll need to use dual layer (DL) DVD media.
3. A product key. Your 25-character product key (not required for digital licenses). For help finding it, go to: https://support.microsoft.com/en-us/w...
Support article: https://support.microsoft.com/en-us/w...
