Windows 10 build 17133 Slow ring
Almost ready

Windows 10 version 1803 (build 17133) releases in the Slow ring

Testers using the Slow ring can now download the RTM version of the Windows 10 Spring Creators Update.

Windows 10 version 1803 is now virtually finalized, as Microsoft pushes build 17133 to PCs enrolled in the Slow ring of the Windows Insider Program. This is the test preview that is reportedly being prepared to roll out to everyone on April 10, 2018, as the Spring Creators Update.

Windows 10 build 17133 in the Slow ring doesn’t introduc new changes or new features, but it’s stable enough to be in Slow ring.

Microsoft explains that with this rollout the team is testing the deployment of the feature update to customers. As a result, not every tester in the Slow ring will get the update on day-one automatically, but it’ll be available broadly to Insiders on Monday, April 2, 2018.

It’s worth pointing out this flight will not longer appear as preview of the Redstone 4 development, instead the update will be listed as “Feature update for Windows 10, version 1803.”

You can check the complete set of improvements for Windows 10 Insider Preview build 17133 at the Windows Blog. In case you missed it, you can read all the changes for Windows 10 build 17128 in this article.

You can also check out these resources:

Downloading Windows 10 build 17133

Although there are no ISO files for Windows 10 build 17133, the update is available immediately through the Slow ring for PCs. This preview build will download and install automatically on your device, but you can always force the update from Settings > Update & security > Windows Update and clicking the Check for updates button.

Update April 20, 2018: Microsoft makes build 17134 available in the Slow ring.