As a result, some have been re-downloading the ISO every time they need to write it to a bootable USB. The main issue is that Installation Media makes it hard to find the ISO download option. This simplifies the process and means you don't need to worry about product keys, but comes with its own problems.
Its new strategy encourages users to download a Windows 10 tool called Installation Media which automatically grabs the latest disk image and burns it to a USB stick.