10.0.21277.1000.rs_prerelease.201207-1443
| Major version | 10 |
| Minor version | 0 |
| Build number | 21277 |
| Build revision | 1000 |
| Lab string | rs_prerelease |
| Build time | 2020-12-07 14:43:00 |
| Family | 21H2 [Cobalt] |
| Source type | Public release |
| Source details | Windows Update |
| Major version | 10 |
| Minor version | 0 |
| Build number | 21277 |
| Build revision | 1000 |
| Lab string | rs_prerelease |
| Build time | 2020-12-07 14:43:00 |
| Family | 21H2 [Cobalt] |
| Source type | Public release |
| Source details | Windows Update |