Laptop external mouse automatically turns off touchpad settings

When a laptop is plugged in and used with a mouse, the touchpad becomes temporarily redundant and may get in the way of accidentally touching the keyboard. If you can automatically turn off the touchpad function after inserting the mouse, you won't have this trouble. The following method can realize this idea.

If you are using a laptop or netbook with an ELAN or Synaptics touchpad, there should be an option like "Disable internal pointing device when mouse is connected" under the mouse properties. We can take advantage of this option as much as possible.

1. Setting method in Windows 10

For users who are using Windows 10, you can use the following setting method:

Open "Settings" and click " Devices icon, and then click Touchpad. In the right window of "Touchpad", click "Related Settings → Other Settings", then in the "Mouse Properties" dialog window that opens, click the ELAN (some computers may be "Device Settings") tab, select "Insert Disable when external USB pointing device" checkbox (Figure 1).

2. A variety of common Windows setting methods

The above describes the setting method in Windows 10. The following setting method is common in Windows 10, Windows 7 and Windows 8/8.1.

Search for "Control Panel" in Windows and click to open "Control Panel". Change the default view to "Small Icons". Find the entry named "Mouse" and click on it to open the Mouse Properties window. Next, switch to the ELAN (or "Device Settings") tab, and then select the "Disable when an external USB pointing device is plugged in" checkbox in the same way as above (Figure 2).

Tips: Some devices have check options that are exactly the opposite of the above options, such as "Keep the touchpad on when the mouse is connected". In this case, you need to cancel the check. The selection of the marquee will do.

3. Modify the registry to add options

If the above options do not exist and the laptop is using the Synaptics touchpad, you can try the method given below to display the above mentioned options.

Tips: Before changing the default items, create a backup of the registry using a backup restore point or using registry backup software.

Press the Win+R key combination to open the "Run" dialog box, enter REGEDIT and press Enter to start the Registry Editor. In the Registry Editor, navigate to the following key:

HKEY_LOCAL_MACHINESOFTWARESynapticsSynTPEnh

On the right, create a new DWORD value and rename it DisableIntPDFeature. Finally, change its value to 3 (Figure 3). Close Registry Editor, restart your computer, and check to see if the option to disable internal pointing devices when connecting external USB pointing devices is enabled.

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