Let's try uninstalling and reinstalling the hardware associated with your
If you have a USB mouse, it would really come in handy right now. If
not, we are going to have to get to and interact with Device Manager without a
mouse. So assuming no USB mouse...
Now let's see if Windows can find and reinstall your touchpad....
If it was a simple driver/communication issue, Windows would have "re-found"
the touchpad and reinstalled the hardware using your machine's previous
(current) mouse drivers.
If this did not work, you are probably going to need a tech or someone with
tech-level experience. Speaking as a tech, I would first confirm that the
hardware is recognized in BIOS (actually, I would use Everest Portable or
AIDA32) then I would eliminate a corrupted driver possibility by installing the
most recent touchpad drivers for your model laptop. Drivers can be gotten
from the support section of the laptop manufacturer's website. If that did
not work or if the hardware was not recognized to begin with, I would open up
the laptop, disconnect the mouse ribbon from the system board, clean the
contacts on the ribbon with an alcohol pad then reconnect. Still no good,
I might try a compatible touchpad from a "cadaver" or donor machine to confirm
faulty hardware before I bought a replacement touchpad/palmrest.
this might be a stupid question, but did you check to see if you may have locked your track pad by mistake? ive done that before
ok, so you should be able to plug-in a regular mouse to use while you figure out the problem...
The trackpad probably has some special software that came with it, or a section in your control panel - have you checked there to make sure it's enabled?
Also, have you looked in your Windows Event Viewer (Start|Control Panel|System and Maintenance| Administrative Tools| Event Viewer.) to see if it's showing any errors there?
Cold be any one of a bazillion things..
Have you tried rebooting the computer for starters?
Ok.. Between the time that it was working and the time that it stopped working, did you do/change anything? Install any software, modify any system settings, install any updates, let anyone use the computer? and.. what brand/model is it and what version of Windows are you using?
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