Windows 10 build 18978
| Build of Windows 10 May 2020 Update | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 18978 |
Windows 10 build 18978 is an unleaked build of Windows 10 May 2020 Update. An issue related to this build was posted to GitHub by a Microsoft employee on 11 September 2019.[1]