"Both updates are listed as compatibility updates for Windows 10 Version 1703. To make this clearer: these are dynamic updates and not updates that most users will come into contact with directly. They may be added to Windows 10 ISO images or installation sources, and are also provided during installation when the operating system runs an update check." gHacks.
By the way, RedneckDude has noted that MS has requested people not to download and install the Creator's Update before MS makes it available through Windows Update.
There's a solid reason for this. MS has received complaints of a buggy update...especially with bluetooth accessory connectivity: "“Our feedback process identified a Bluetooth accessory connectivity issue with PCs that use a specific series of Broadcom radios, ultimately resulting in devices not reconnecting as expected,” MS blog notes.
"Redmond has recommended users to wait till the problems get fixed and Creators Update is automatically pushed to their systems." - Fossbytes.
Thanks, Jim. I thought this affected relatively few users, but apparently it's more than that.