GT70 keyboard and touchpad no longer working [Windows 7]

I've had this machine for nearly a year without any problems, but yesterday my keyboard stopped working. No keys at all are registered in Windows when I type. The keyboard seems physically ok, however, since I am able to get into the BIOS setup menu and boot menu, etc. Just once Windows launches it stops working.
Symptoms:
- Keyboard will not work in Windows.
- I've noticed that the touchpad does not work either.
- I can enable/disable touchpad from S-Bar, and the physical enable/disable touchpad button's light will change, but the touchpad does not work.
- An external mouse works correctly.
- An external keyboard works correctly.
- My machine boots up with Wi-Fi turned off now (that never happened before). I am able to turn it on via S-Bar.
What I've tried:
- Shutting down, removing battery and power cord, and waiting an hour (to reset EC controller? (read that somewhere) )
- Uninstalling the "PS/2 Keyboard" entry from Device Manager.
- Rebooting many times.
- Booting into Safe Mode (keyboard does not work even in Safe Mode)

I haven't installed anything recently, but I did just discover that the keyboard (but not the touchpad) will work after waking the machine from sleep. I usually put the machine to sleep when I'm through with it instead of restarting it, so it could have been something I installed a while ago.
I have done multiple virus scans, both with Norton and Malwarebytes, so I don't think it's malware.
I just can't figure out what kind of software could make something as basic as a keyboard stop working.

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Excuse me, but i'm a newbie. I'm not sure if this is an arch problem, but i will just post it here.
I've beening using Arch64 and it works just fine. However, every time i reboot from arch into Windows 7 (32bit), the keyboard and touchpad will stop responding just when the Win7 splash screen shows, however the mouse works fine. Then when you shutdown the computer (from win7 now) it will take apparently longer time, and sometimes i have to press the power key 5 seconds to make it shutdown.
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Last edited by crlf0710 (2011-11-15 10:29:38)

Hi!
That is indeed strange. Since your external mouse works fine (which probably is connected via USB, right?) it appears that the problem lies somewhere around the internal keyboard/touchpad access. I'm not sure how this works with a Lenovo Y450, but just try to enter BIOS (in case you have not been there, you probably have to hit F1 or F2 during startup - less likely it would be delete or escape ...) and look for your keyboard/touchpad options.
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Hi Dumptruck,
Welcome to the Forums
As per the query we understood that you are facing issue with keyboard and touchpad in your Lenovo G50-70 laptop.
Try to uninstall the touchpad driver and restart the system and reinstall the driver and check for the issue.
Click here for the touchpad driver for windows 7.
Click here for the touchpad driver for windows 8.1.
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Best regards,
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Hi,
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****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

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Hi rmikereese
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This question was solved.
View Solution.

Dear Customer,
Welcome and Thank you for posting your query on HP Support Forum
It looks like you are facing difficulties to resolve Touchpad Issues with your Notebook
We will surely assist you with this
Steps to drain the Static charge and loading default BIOS settings to resolve the issue
Step 01. Turn OFF the Notebook
Step 02. Un-plug the Power/AC Adapter and also remove the Battery too
Step 03. Press and Hold the Power Button of the Notebook for a full minute
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Please Click this Link to find more troubleshooting steps to resolve this issue
Hope this helps, for any further queries reply to the post and feel free to join us again
**Click the KUDOS star on left to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
K N R K
Although I am an HP employee, I am speaking for myself and not for HP

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Message Edited by sedmtd on 10-27-2009 12:36 PM
Message Edited by sedmtd on 10-27-2009 12:38 PM

GT70 keyboard and touchpad no longer working [Windows 7]

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