The following link are from Microsoft website:
Choose your language, click the link to start the download and wait for the download to finish before mounting the file. It can take 10-20 minutes depending of your internet speed.
- Mounting ISO file
To do it, access your Downloads folder to locate the downloaded ISO file and right-click on the ISO file and select the option mount from the contextual menu. See the screenshot below. This will mount the file as a virtual device and allow you to access it like a pen drive.