Preparing the Windows 10 May 2021 Update for Release

Hello Windows Insiders!

We are preparing the Windows 10 May 2021 Update (version 21H1) for release. We believe that Build 19043.928 is the final build for the May 2021 Update, and the media for this build can be downloaded here. We are continuing to improve the overall experience of the May 2021 Update on customers’ PCs through our usual servicing cadence. This means that Windows Insiders in the Beta and Release Preview Channels are already on “newer” 21H1 bits as of earlier this week with the release of Build 19043.964.

The Windows 10 May 2021 Update offered as an optional update.

Please note that the May 2021 Update will be offered to Insiders in the Release Preview Channel via our “seeker” experience in Windows Update at first. This means Insiders will need to go to Settings > Update & Security > Windows Update and choose to download and install 21H1. Once an Insider updates their PC to the May 2021 Update, they will continue to automatically receive new servicing updates through Windows Update (like the monthly update process), including Build 19043.964.

For instructions on how to join the Windows Insider Program and join your PC to the Release Preview Channel, click here.

Windows Insider Program for Business participants have been able to validate 21H1 on commercial devices in their organizations since March and can request Microsoft Support. This support offer is intended to help resolve issues with commercial-specific scenarios and is limited to Windows 10 Enterprise and Pro edition customers. Please see this blog post for all the details on validating 21H1 for commercial customers.