Windows 10 build 9833

Windows 10 build 9833 is a pre-Technical Preview build of Windows 10, which was uploaded to BetaArchive on 9 February 2017 as an x64 version only in Simplified Chinese.

Window thumbnail border color error
If window auto-colorization is enabled, the window thumbnail borders on the taskbar do not change color even after the wallpaper changes. This issue can be remedied by manually changing the window color through the Control Panel or restarting Windows.