Windows 10 build 21287
| Build of Cobalt | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 21287 |
Windows 10 build 21287 is a build of Cobalt, the 21H2 development semester of Windows as a service. It was referenced in the article "Avoid Annoying Unexpected App Rearrangement – Your PC Can Sleep Without Nightmares" posted to Microsoft DirectX Developer Blog by a Microsoft employee on 28 April 2021.[1]