Hi, i have a dell inspiron 1525, and when ever i plug the charger inside the laptop, my touchpad mouse stop working and also anyother other external mouse i do plug it in, when i take the power off everything work perfectly, can anyone help

Try a hairdryer

Control Panel
Then Touch Pad
Look for a Disable/Enable Block to Check or Uncheck

Unplug everything except the power cord, including the following:

Speakers
Printers
Scanners
USB devices
Personal Digital Assistants (PDAs)
USB flash drive or other external storage devices
External Monitor
External Keyboard
External Mouse
If your computer is attached to a docking station, undock it.



Make sure the touchpad or your finger has no dirt, grease, liquids or food on it (the touchpad has to make a good contact with your finger to work correctly).


Turn the computer back on and retest the touchpad.

When the touchpad still does not work correctly proceed to step 5.

When the touchpad does work correctly, attach one external device at a time and test the touchpad to see which one may have caused the issue.



Make sure the latest driver for the touchpad is installed (you may need to use a external USB or Bluetooth mouse), for more information refer to:
"How to Use the Drivers and Downloads Website"

it would be easy for you to get a usb mouse.you can just borrow and install the dell touchpad drivers from dell support website.this sould be fixed.

Try an external mouse. You might have to turn off the touchpad in BIOS (F2 key on boot will get you into setup). Look for Mouse/Touchpad under 'Post Behavior' or perhaps elsewhere (differently displayed in various BIOS setups).

do you have a mouse plugged into your laptop? It could be either a power setting or a mouse/touchpad setting.

Is the problem being caused by your palm hitting the surface of the touchpad? This happens with many people. There is a setting for the touchpad which will let you set how sensitive the touchpad is, thereby eliminating your problem.

this is because you must deactivate your touchpad. you can do this by holding the Fn key and pressing the F* key that shows a picture of a touchpad in the same color as the Fn.
or you can go to control panel and turn it off in the mouse settings. but just attaching a mouse will allow the touchpad to stay active and therefore still be sensitive enough for your hand to "tap" th cursor.;
Good luck and pls rank this response! :D

Try unistalling the touchpad driver, and reboot. The machine will find the touchpad and reinstall the driver automatically. These have a tenancy to glitch when using an external mouse, and this should clear it up. Let me know.

Same thing here, I can not find out how to diable the touch paid. I spent an hour chatting on-line with Dell Tech support and they did nothing to help!! I am starting to think it can not be done on this machine. Please someone tell use how to do this?