1.

Move your mouse cursor [  ] to where the time is currently displayed on the taskbar.

2.

Once your mouse cursor is over the time, click and hold the mouse button down, and while holding the mouse button down, move your cursor to the middle edge of where you want the taskbar to be. For example, if you wish to move the taskbar back to the left-hand side of your screen, move the cursor to the left most center of the screen.

3.

When the taskbar has moved to its new location, release the button.

Note: Moving the taskbar also moves the Start button and the Notification area.