Keep in mind, there is no USB reader attached to the computer. The icon reappeared along with the three dots. When I restarted my computer, the operating system started to automatically re install the 'USB 2.0 Reader'. I selected 'Open Devices and Printers' and removed a device called 'USB 2.0 Reader'. All of my USB cables and devices were disconnected from my computer except the USB mouse and USB keyboard. When I clicked on the icon in the system tray, it displayed 'Open Devices and Printers' along with three dots, like '.' underneath.