HiddeX - Tiny portable freeware application for Windows that can easily hide any window, program, browser or...
Buttery Taskbar - Save space on your screen by permanently hiding the taskbar when it's not needed.
task-homie - Completely hide auto-hidden Windows taskbars
WinHide.SB - The program to control the visibility of windows.
Hide Taskbar - Tiny app to hide the Windows taskbar using keyboard shortcuts
Anti Boss Key - Free screen privacy tool, Instantly hide any program when your boss comes around the corner