Windows SteadyState (formerly Shared Computer Toolkit) is a discontinued freeware tool developed by Microsoft that gives administrators enhanced options for configuring shared computers, such as hard drive protection and advanced user management. It is primarily designed for use on computers shared by many people, such as internet cafes, schools and libraries.SteadyState was available until December 31, 2010 from Microsoft for 32-bit versions of Windows XP and Windows Vista.