Microsoft advised users against manually updating to the Creators Update by downloading the ISO files and performing a clean install. The company says that users who manually install a clean version of the Windows 10 Creators update are bypassing filters and blocks the company put in place to avoid bugs that have appeared in the CU edition. Computers running older hardware will receive it last, as there’s a high chance those devices will encounter various issues. Microsoft is using a multi-stage rollout process for shipping the update to users.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-advises-against-manually-installing-windows-10-creators-update/