Disabling the touchpad on a Dell Inspiron can be useful when typing for long periods of time, or using an external mouse. Bumping or tapping the touchpad while typing can cause cursor jumping and unwanted results. Use the touchpad software to enable or disable touchpad controls. Download the driver for your touchpad at the Dell Support website.
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Click on the "Touchpad" icon in the task bar. If the icon doesn't appear, you can download and install the driver for the touchpad from the Dell website, or choose "Start" and "Control Panel."
Choose "Device Select" on the touchpad menu, or choose "Mouse" in the "Control Panel" menu and "Device Select."
Click "Disable" under "Touchpad" to turn off the touchpad, or click "Disable Touchpad/Pointing Stick When a USB Mouse is Connected."
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