This is a very annoying issue. While typing on laptop cursor would jump around, and putting the mouse pointer over an icon would automatically launch the program without any human intervention. Even after disabling the touch pad of my laptop and plugging in a USB mouse, the problem may be still the same.
Follow these steps for solving Automatic Clicking Problem:
-Right-click on "My Computer" on your desktop
-At the top of the window that appears, left-click on the "Hardware" tab
-Left-click on the "Device Manager" button
-Look down the tree of Device items and left-click on the plus sign (+) to the left of "Mice and other pointing devices"
-At this point, under the "Mice and other pointing devices" heading, you should see one listed item (driver) if you're using just your touch-pad or one mouse
-Right-click on that driver name - in my case it's "Snaptics PS/2..."
From the menu that appears when you right-click on the mouse driver, choose "Update driver" by left-clicking on it. Follow the update instructions
After all, Reboot.