Notice at the top of your touchpad an orange light came on this means your touchpad is disabled. Press and hold the Windows () key, and then press the q key. This ensures that you disable the correct device. Select the touchpad from the Device Settings tab. Please press windows key and X key at the same time, click Mobility Center,and then Turn off can also disable touchpad by typing. If you have the touchpad driver installed for your D you can even change.
You can disable the touchpad when an external mouse is installed in the BIOS.
How do I disable touchpad on Inspiron 1545 laptop Touch or click Mouse & touchpad settings (System settings).
