Windows 10 build 10176 (th1)

Windows 10 build 10176 (th1) is a pre-RTM build of Windows 10, which was shared online on 10 July 2015. It uses the Windows 10 branding in the "About Windows" and program dialogs, and lacks a watermark and a timebomb.

While this build is currently only available in Simplified Chinese, a homebrew English copy that uses MUI files from build 10166 is also known to exist.