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Windows 7: Keyboard doesn't work

16 Jul 2012   #1
raya2

Windows 7
 
 
Keyboard doesn't work

The keyboard doesn't work. I have two keyboards (ps/2 and usb) and after uninstalling my antivirus (avast), none of them work in windows (they work in bios section). All other usb devices like mouse and gamepad work.
Here is the screenahot of device manager:




My System SpecsSystem Spec
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16 Jul 2012   #2
Hopalong X

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

Try one at a time- right click each keyboard device listed. Then in new small window that appears left click update driver.

Let us know if this works.
My System SpecsSystem Spec
16 Jul 2012   #3
raya2

Windows 7
 
 

Quote   Quote: Originally Posted by Hopalong X View Post
Try one at a time- right click each keyboard device listed. Then in new small window that appears left click update driver.

Let us know if this works.
No - It didn't work. I even disable/enable or uninstall the keyboard devices but nothing solved.
Here is the error note in keyboard properties hardware:

Device status:

Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)

My System SpecsSystem Spec
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16 Jul 2012   #4
Hopalong X

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

Taken from this MS web site> how to fix code 19 errors problems in windows 7 - Microsoft Answers

Unplug all but one of the keyboards. One keyboard at a time.
Steps below to try to fix the problem. I added the red Step #'s so it would be easier to follow.

Quote:
Code 19 :
Windows cannot start this hardware device because its configuration information (in the registry)
is incomplete or damaged.

Step #1 To fix this problem you can first try running a troubleshooting wizard. If that does not work,
you should uninstall and then reinstall the hardware device. (Code 19)
-------------------------------------------------------------
A registry problem was detected.

This can occur when more than one service is defined for a device, if there is a failure opening
the service subkey, or if the driver name cannot be obtained from the service subkey.

Try these options:
Step #2 On the General Properties tab of the device, click Troubleshoot to start the troubleshooting wizard.
Click Uninstall, and then click Scan for hardware changes to load a usable driver.
Step #3 Restart the computer in Safe Mode, and then select Last Known Good Configuration, which rolls
back to the most recent successful registry configuration.


This is all I could find at the moment. Step #3 might be the easiest and would put the registry back where it was hopefully.

Go here to our tutorial> Advanced Boot Options

Go Step #1 to Step #3.
In the picture you will see "Last Known good cofiguration" listed. Click it and follow prompts.


Step #4 explains the actions of each selection.
My System SpecsSystem Spec
16 Jul 2012   #5
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Plug in what ever keyboard you want to use and shut down. Then start up and see if Windows 7 will pickup the drivers. Windows 7 has a lot of built in drivers.
My System SpecsSystem Spec
16 Jul 2012   #6
writhziden

Windows 7 Home Premium 64 Bit
 
 

Also, since this is USB related, I would suggest some USB troubleshooting steps:
  • Start with USB Driver - General Fix for Problems to resolve the USB issues. Also, USB ports can sometimes enter a safe power state to protect the system from power surges due to USB devices. To reset the USB ports to a nominal power state:
    1. Shut down and turn off the computer.
    2. Unplug the computer from the wall or surge protector (then remove the battery if it is a laptop).
    3. "Remove the computer from any port replicator or docking station, disconnect
      cables to printers or devices such as external monitors, USB memory sticks or SD cards, headset or external speakers, mouse or auxiliary keyboard, turn off WIFI and Bluetooth wireless devices." (Use Hard Reset to Resolve Hardware and Software Issues HP Pavilion dv5000 Notebook PC series - HP Customer Care (United States - English))
    4. Hold down the power button for 30 seconds. This closes the circuit and ensures all
      power from components is drained to clear the software connections between the BIOS
      and hardware and clear any corruption in the temporary memory.
    5. (If it is a laptop, plug the battery back into the laptop and then) Plug the computer back into the wall. Do not reconnect any unnecessary peripherals; monitor, keyboard,
      and mouse should suffice and be the only peripherals reconnected.
    6. Turn it on to reinitialize the software connections between the BIOS and hardware
My System SpecsSystem Spec
16 Jul 2012   #7
raya2

Windows 7
 
 

Thanks for all of your answers. but it seems that I found the root of the problem. in the driver details section of keyboard devices there is an avast driver named aswKbd.sys (avast! Keyboard Filter Driver) located in c:\Windows\System32\drivers
So how can I remove it? is simply delete that file, do the trick? or not?

My System SpecsSystem Spec
16 Jul 2012   #8
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

If you are using Avast security remove it and install MSE and update it and run complete scan.
Microsoft Security Essentials - Free Antivirus for Windows
I have also read that Avast keyboard filter can also be an infection. Also use this after updating.
Thank you for downloading Malwarebytes Anti-Malware from CNET Download.com
My System SpecsSystem Spec
16 Jul 2012   #9
writhziden

Windows 7 Home Premium 64 Bit
 
 

I would also recommend you do as Layback Bear suggests.

When you remove avast!, make sure to use the avast! Uninstall Utility | Download aswClear for avast! Removal.
My System SpecsSystem Spec
16 Jul 2012   #10
raya2

Windows 7
 
 

Quote   Quote: Originally Posted by writhziden View Post
I would also recommend you do as Layback Bear suggests.

When you remove avast!, make sure to use the avast! Uninstall Utility | Download aswClear for avast! Removal.
I removed the avast before (with that avast! Uninstall Utility )
I deleted the aswKbd.sys but the keyboard is still not working. some help?
My System SpecsSystem Spec
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