Windows 10 build 18327.1

Windows 10 build 18327.1 is a build of Windows 10 May 2019 Update. A Preinstallation Environment based on this build was released on 5 February 2019 as a part of a preview version of the Assessment and Deployment Kit, although the full build was never officially released via the Windows Insider Program.

A screenshot of this build's Pro SKU in the American English language was posted to the BetaWiki Discord server on 9 August 2021, but was removed shortly afterwards. The full build was then uploaded in the Arabic language on 4 July 2022, followed by its British English variant on 10 July 2022.