Used TaskBar Hider for Windows?
Developer’s Description
By IT Samples
This is small utility that allows you to hide and show the Windows TaskBar panel by pressing user-defined hot key.
Just run the program and press the WIN+X key (by default) to hide or show the TaskBar.You can customize the hot key in the Settings dialog box (click the mouse on the System Tray icon).
TaskBar Hider supports command line options:
-show shows the taskbar
-hide hides the taskbar
-exit quits the program after the action
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