Windows 10 May 2019 Update

Windows 10 May 2019 Update
Version of Microsoft Windows
Windows 10 logo and wordmark.svg
OS familyWindows 10 (NT 10.0)
Preliminary nameWindows 10 April 2019 Update
Architecturex64, x86, ARM64
Latest build
Release date2019-05-21
Support end2020-12-08
Server counterpart
Windows Server, version 1903
Windows 10 October 2018 Update
Replaced by
Windows 10 November 2019 Update

Windows 10 May 2019 Update (also known as version 1903 or "19H1") is an update for Windows 10 which was released on 21 May 2019. It is the first version of Windows 10 to use a more descriptive codename (including the year and the order released) instead of the "Redstone" or "Threshold" codename.

New features and changes[edit | edit source]

  • This version includes a new light variant of the Hero wallpaper, replacing the previous one.
  • A new light theme has been added. When enabled, the Microsoft Store icon changes to an darker one.
  • Windows Sandbox, which emulates a Windows desktop for testing potentially malicious applications, has been added as an optional feature. It relies on Hyper-V, and thus requires at least the Pro SKU. However, it can be installed unofficially on the Home SKU.
  • Cortana has been separated from the Search function. This can be seen on the Taskbar and in the Settings.
  • The ability to pause updates for 35 days as maximum, which was previously only available in at least the Pro SKU, has been ported to the Home SKU.
  • New icons have been added to the User account and Shut down submenus in the Start menu, the Security options page (which can be invoked by pressing Ctrl+Alt+Delete) and the login screen.

List of known builds[edit | edit source]

Pre-Insider Preview[edit | edit source]

Insider Preview (rs_prerelease branch)[edit | edit source]

Insider Preview (19h1_release branch)[edit | edit source]

RTM[edit | edit source]