Windows USB/DVD Download Tool
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Overview
When you download Windows from Microsoft Store, you have two options: You can download a collection of compressed files, or you can download an ISO file. An ISO file combines all the Windows installation files into a single uncompressed file.
If you choose to download an ISO file so you can create a bootable file from a DVD or USB drive, copy the Windows ISO file onto your drive and then run the Windows USB/DVD Download Tool. Then simply install Windows onto your computer directly from your USB or DVD drive.
When you download the ISO file, you must copy it onto a USB or DVD. When you're ready to install Windows, insert the USB drive or DVD with the ISO file on it and then run Setup.exe from the root folder on the drive.
For more information visit this link https://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool