Windows 10 build 21386

10.0.21386.1.co_release.210517-1400
Build of Cobalt
No image available
OS family
Architecturex86, x64, ARM64
Compiled2021-05-17
Timebomb
Works in

Windows 10 build 21386 is a build of Cobalt, the 21H2 development semester of Windows as a service. It was mentioned in the metadata file Desktop_neutral_Forward_21386.1.co_release.210517-1400.CompDB.xml when updating to build 21387 (co_release).

Desktop_neutral_Forward_21386.1.co_release.210517-1400.CompDB.xml[edit | edit source]

<CompDB xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" CreatedDate="2021-05-19T10:15:34.8375406Z" Revision="1" SchemaVersion="1.2" BuildID="66218772-4d3c-9e5b-69c4-416bdc034f23" BuildInfo="co_release.21386.1.210517-1400" OSVersion="10.0.21386.1" BuildArch="amd64" Type="Update" Name="Update~amd64~Desktop~~~Diff~21386.1.co_release.210517-1400" TargetBuildID="905fdc07-f841-ed8b-114c-4b4266bb4d61" TargetBuildInfo="co_release.21387.1.210518-1436" TargetOSVersion="10.0.21387.1" xmlns="http://schemas.microsoft.com/embedded/2004/10/ImageUpdate">