Touchpad stopped working..I can get a usb mouse to work

Step 1:
The touchpad of any laptop is always subject to heavy use.
Most touchpads are designed for their durability to sustain the daily wear and tear for the lifespan of the laptop.
However, there may be instances or accidents that cause the touchpads to malfunction or stop working entirely.
There are ways to troubleshoot such problems and there are also remedies to salvage the touchpad's functionality without heavy repair or replacement cost.

Determine What's Wrong
A laptop's touchpad basically provides the functionality of a mouse for a desktop PC, typically with two buttons located just below it acting as the left and right click buttons on a desktop computer. A touchpad may be damaged by excessive use or foreign substances such as water, dirt or food items. Hit the "Windows" button on the keyboard and then use the right-left keys (or hit 'C') to open "Control Panel." From there, again use the right-left keys to get to "Mouse" and then hit "Return." Use the right-left keys to toggle between the tabs and open each to investigate whether any boxes had been improperly clicked by accident that cause the touchpad to become unresponsive. But if any of these steps fail to remedy the problem, then the touchpad may need to be repaired or replaced. b> Repairing/Replacing Touchpad b> A touchpad assembly cost $100 or more and that's not including replacement installation. Hiring a specialist to replace a damaged touchpad, including parts and labor, may easily cost $200. Unless the laptop in question is worth well over $1,000 and the touchpad is deemed a necessity, such repairs are rarely worth the cost. Attempting to replace the touchpad without certain expertise in laptop assembly may be dangerous and/or destructive. Also, getting a replacement part that's not compatible with the laptop may have catastrophic results, including irreversible damage to the laptop. Long-Term and Better Solution b> The simplest, and best, solution to a malfunctioning touchpad is to replace its functionalities with an external mouse. Most PCs sold after 2000 come with USB ports and getting a USB mouse either a corded or a cordless one--will remedy the problem. A cordless USB mouse may be bought for as little as $10 and some of the better-designed ones allow the user to tuck the USB stick inside the mouse's belly when not in use. Even when a touchpad is working properly, a laptop user should be advised to plug in a mouse anyway whenever possible as touchpads are notoriously difficult to use and also leaves the user in an ergonomically incorrect position.
http://www.microsoft.com/ b> http://www.streetdirectory.com/travel_guide/116002/hardware/touchpad_keyboard_for_personal_computers__pc.html

When you plug in a USB mouse, the touchpad is usually automatically disabled. Look in your control panel under Mouse or Pointing devices. You will want to look at the settings to ensure that your touchpad turns back on after you unplug the mouse. If your touchpad is NOT returning to normal functionality after you unplug the mouse, try the "safely remove hardware" option (If you have windows). Look in the lower right corner of your screen. If you have a small green arrow icon that safes "safely remove hardware" when you put the mouse pointer over it, click on it. If the mouse shows up in the list, highlight it, and click Stop. You can then remove the mouse when Windows tells you it's safe to do so. This may then return full functionality of the touchpad. In some cases, the mousepad click functionality will be disabled if a USB mouse is plugged in. It can remain so if the system doesn't fully acknowledge that the mouse has been removed. That's why I'm suggesting to try the "Safely Remove Hardware" option first. If that doesn't work, there may be a physical problem with your touchpad and it will need to be serviced.

please chaeck the mouse pad lock mode or any light is glowing on top of the mouse touch pad?

Unplug your external mouse and restart your laptop. Check to see if the touchpad works, if it doesn't reinstall the driver. Unplug all other USB devices and plug your mouse back into a different USB port. It should be detected now. Cheers, Ravi Shanghavi

make sure the mouse pad switch is not turned off.

Check the Acer site and download the latest driver for your touchpad. If you recently added a USB mouse check your settings and make sure that the mouse did not turn off your touchpad. That should take care of your problem.

Have you tried pressing the Fn + F8 keys? This combination is used to disable and enable the mouse pad.

As I understand your keyboard is now working and your usb mouse. But the touchpad does not work.

Have you or someone opened up your laptop recently? If so it is possible the touchpad was not connected properly.

Can you please post the exact name of your laptop. I'll see what else I can figure out for you.

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.

kINDLY CONNECT A USB KEYBOARD AND/OR MOUSE TO TROUBLESHOOT THE NOTE BOOK IF USB KEYBOARD/ MOUSE (EXTERNAL NORMAL USB DESKTOP KEYBOARD MOUSE). THEN WE WILL BE ABLE TO TROUBLE SHOOT