Windows 10 build 18243
| Build of Windows 10 May 2019 Update | |
 | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 18243 |
| Build revision | 1000 |
| Build lab | rs_prerelease |
| Compiled on | 2018-09-17 |
Windows 10 build 18243 is an unleaked build of Windows 10 May 2019 Update. It was referenced in the presentation shown in a Windows Insider Program webcast held in September 2018.[1]