This can occur when running apps, such as games, that open in full-screen. The Start menu appears when features of the work area, such as the screen resolution, DPI setting, or screen rotation, are changed. Project Spartan crashes when attempting to open it on some devices.
This update rollup includes a collection of fixes for the following issues for Windows 10 Insider Preview and Windows Server Technical Preview: This update is available from Windows Update. This update rollup package provides a collection of fixes. This article describes the update rollup released on for Windows 10 Insider Preview and Windows Server Technical Preview.