Hi Hila,

Welcome to Dell Community Forum.

There are two ways to enable/disable the touchpad.

• Press + to enable or disable the touchpad. An indicator LED lights up just above the touchpad once it has been disabled.

OR

• Click Start  ->Control Panel->Hardware and Sound.
• Double click Dell Touchpad and enable/disable on the application window by clicking Touchpad On/Off.

Try the steps mentioned above and let us know if further help is needed.

Thanks and regards,
Babita S
#iworkforDell 

For easy access to drivers, manuals and product updates, please visit our Support Site .

Hi Babita,

I already try those things, as mention above in my original message, none of them seemed to work, when I try to update the drivers, it says that the device can't work (code 10), under that it says that I need to connect with device manufacturer, since the thouchpad is a built-in in the lap-top I came here.

The LED light is permanent turned on, when I go to Device Manager, and try to disable and then enable it, it stays the same.

What should I do?

Hila

Hi Hila,

Thank you for your reply.

Have you checked the Touchpad/Mouse settings in Control Panel? It may be possible that the option to disable internal touchpad when an external mouse has been connected may be checked.

Please click on the link below and try updating the BIOS for your computer.

http://dell.to/19AiVJa

How to download and update latest BIOS: http://dell.to/13HzFpd

Plug your computer to a good, working UPS before you update the BIOS. If you experience a loss of AC power or a significant voltage sag/spike during the BIOS flash, you will either have to replace the BIOS chip or motherboard. Disconnect all external devices and confirm there is no cd/dvd in the optical drive prior to updating the BIOS.

Please keep us posted on the results.

Thanks and regards,
Babita S
#iworkforDell 

For easy access to drivers, manuals and product updates, please visit our Support Site .

Hi Babita,

The BIOS is up-to-date, I guess I didn't mention it before, but before all of this happened, both the internal and external mouse device work perfectly fine together, but I checked as you suggest, but this option you were talking about is not check.

I tried to uninstall the device, but now the system says, another error code num.24 which says the following:

device is not exist, not working properly, or has not all its drivers installed.

When I'm entering to the log of the device it says "Device ACPI\DLL056A\4&135a8ead&0 had a problem starting."

I'm desperate, I don't know what else I should do.

Hi Hila,

Thank you for your reply.

Since the system is under warranty, please contact me through private message by clicking on my name highlighted in blue. On the next page, click the envelope icon and provide your service tag and contact information (as mentioned below) so that I may access your system records.

• System Service Tag No.:
• Registered System Owner's Name:
• Shipping address:
• Telephone number/s:
• Email address:

Please reply at the earliest so that we may assist you further.

Thanks and regards,
Babita S
#iworkforDell 

For easy access to drivers, manuals and product updates, please visit our Support Site .

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