Windows NT 3.5 build 749
| Build of Windows NT 3.5 | |
 | |
| OS family | Windows NT |
|---|---|
| Version number | 3.50 |
| Build number | 749 |
| Build revision | 1 |
| Architecture | x86 |
Windows NT 3.5 build 749 is an unleaked build of Windows NT 3.5. A photo of the first floppy disk was shared on 3 April 2025. However, neither FAT nor the content of it is readable.