Enlarge the Task Bar

1. First, you must make sure that the Taskbar is not locked. If unlocked, it should display three dotted lines on the left and right sides, as shown in the screenshot below.
If those lines are present skip to the next section and go further with the steps.

2. If you don't see the dotted lines, right click on the Taskbar and uncheck the option that says: Lock the Taskbar.

Now to Enlarge the Quick Launch Icons



Right click somewhere in the area where you find the Quick Launch icons, click View and then simply select Large Icons.

Now your Quick Launch icons will look larger, just like in the screenshot below.