Windows 10 build 16221
| Build of Windows 10 Fall Creators Update | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 16221 |
| Build revision | 1000 |
| Expiration date | |
| Timebomb | 2017-12-04 |
| SKUs | |
| Enterprise | |
| About dialog | |
Windows 10 build 16221 is an unleaked build of Windows 10 Fall Creators Update. A screenshot of this build was posted by a Microsoft employee on 12 June 2017.[1]