Windows 10 Fall Creators Update is finally available now via Windows Update. Go get it if you don’t plan to delay or block it for sometime.
Feature update to Windows 10, version 1709
If Windows Update still doesn’t show the Feature Update, you can upgrade it manually using the Upgrade tool. Another option is to download the Media Creation Tool and do an upgrade installation, or download the ISO locally.
Download Windows 10 Media Creation Tool from Microsoft now!
Fall Creators Update ISO: Direct download links
See how to Get Windows 10 Official ISO Images Using MCT or via Direct Download
x64 Fall Creators Update ISO file size is 4.4 GB
x86 Fall Creators Update ISO file size is 3.2 GB