UnbarOS

UnbarOS is the operating system that Unbar95 uses. It is modeled off of the Microsoft Windows and Progressbar operating system. To unlock new releases of UnbarOS, one must achieve the minimum CPU, RAM, and disk space necessary. Unlike the Windows and Progressbar operating system, there is no need to wait several years before the next version of UnbarOS is released.

Each version of UnbarOS comes with a Game menu (like the Start menu in Windows computers and Progressbar oly begin) or a Program Menu(for versions before Unbar Chinogo). There are only one wallpapers that can be used, a UnDOS to find Bonuses and Cheats. From the settings application, one can change sound, language, color blindness, wallpaper, cloud saving, and display settings. After update 0.5 on February 12, 2020, there is also a Slow Time widget that slows time on Unbar Tallhorn or later.