1. Right-click an empty area of the Taskbar, and clear the checkmark next to Lock the Taskbar.

2. Left-click and hold an empty area of the Taskbar, and then drag it to the left side of the screen. Once you get close, you'll see it lock in, at which point you can release the mouse button.

That's all there is to it! Give it a try for a few days, and if you don't like it, you can always drag the Taskbar back to the bottom of the screen.