Microsoft has yet to officially make Windows 10 Creators Update available via Windows Update to everyone. But it has already taken a leap and pushed the first build from next major Windows 10 version Redstone 3 to insiders in Fast Ring for testing.

Windows 10 Preview Build 16170 has been made available and can be installed now on your devices. In case you are not being offered this build you may need to refresh your Windows Insider settings. You can do it by going to Settings—>Update & Security—>Windows Insiders Programme and by following the prompts.

As expected from initial preview builds for any major Windows 10 version, focus of this build is largely on underlying structural improvements. So, you won’t be able to see and major new design changes or new features yet.

As you can see in the official changelog below, Build 16170 has mostly fixes and improvements. But then there is one minor UI change in terms of share icon in File explorer.

Windows 10 Redstone 3 Build 16170 Changelog (Official):

We fixed the issue causing your PC to fail to install new builds on reboot with the error 8024a112.

We have updated the share icon in File Explorer (in the Share tab) to match our new share iconography.

We fixed an issue where Cortana Reminders was displayed as a possible share target when Cortana wasn’t enabled.

We fixed an issue where Miracast sessions would disconnect a minute or so after the Connect UI was closed if the connection was a first time pairing.

We fixed a high-DPI issue when “System (Enhanced)” scaling is enabled so as to now correctly display certain applications that use display graphics accelerated contents.

Turning the night light schedule off in Settings now turns night light off immediately.

Source: Microsoft