How to Move a Start Menu Button to the Bottom Left Cornerby Theon Weber
By default, the Windows Start button appears in the bottom left corner of the screen, but it's easy to accidentally move the taskbar so that it appears on one of the other sides of the desktop. This can be disconcerting and annoying, especially if you don't know how you did it. It's easy to restore the taskbar and thus the Start button to its original position on the desktop.
Click and hold the left mouse button on the area of the taskbar where the system time is displayed.
Drag the cursor to the bottom center of the screen. An outline of the taskbar should appear indicating that you are moving it.
Release the mouse button to move the taskbar and reposition the Start button.