Windows 10 build 20239
| Build of Iron | |
 | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 20239 |
| Build revision | 1000 |
| Build lab | rs_prerelease |
| Compiled on | 2020-10-14 |
| SKUs | |
| Enterprise | |
Windows 10 build 20239 is a build of Iron, the 21H1 development semester of Windows as a service. Two screenshots of this build were posted to GitHub by a Microsoft employee on 21 October 2020.[1][2] It was also mentioned in a Feedback Hub quest about the Memory Diagnostics Tool:[3]
If you get the error: “Your computer has a memory problem” then:
- Contact your OEM for support if you have system problems. To increase stability, on Windows Insider builds 20239+ the bad pages will be avoided until a future scan.