Question about Acer NSK8458AN Keyboard

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Acer Extensa 5420 keyBoard driver

I have an Acer Extensa 5420 and the driver is missing from the Device Manager . The audio device is also missing. I need a download to reinstall. Where could I find this download?

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  • Anonymous Oct 04, 2008

    my function key does not work

  • Anonymous Feb 11, 2009

    i got my computer reconfigured at best buy, and when i got it back there isno sound on it. how do i fix it??

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Download PC wizard install and use this will detect your drivers take note of name and number and search the web for them
IE keyboard 234 drivers

Posted on Jul 24, 2008

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Hai to al dear

Posted on Jul 27, 2008

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6ya6ya
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Posted on Jan 02, 2017

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1 Answer

How to fix media problems


Go to device manager and right click on the audio device and select "Update Driver". That may work. If it is not in device manager then you will have to get the Audio driver installer from the manufacturers web site

Feb 17, 2010 | Acer Extensa 5420-5687 Notebook

1 Answer

Hello i have an ACER Extensa 5420 that said no audio output device...How can i fix it??


http://global-download.acer.com/GDFiles/Driver/Audio/Audio%20Realtek%20.6.0.1.5404_Vistax86.zip?acerid=633643020790033772&Step1=Notebook&Step2=Extensa&Step3=Extensa 5420&OS=V10&LC=en&BC=Acer&SC=PA_6

copy and paste the above, its the latest sound driver, this will correct your no output device..

Good luck!

Dec 28, 2009 | Acer Extensa 5420-5687 Notebook

1 Answer

My daughters boyfriend tried to down load something to his phone from my daughters acer extensa 5420. Now the key board and touchpad will not work. I can get to f2, and the keyboard works there. Help...


if you have a usb keyboard and mouse this isn't too difficult to troubleshoot, plug them in, boot the computer and you can manipulate the pc like normal. then go to control panel>system>device manager, and check and see if there is a conflict with the drivers, and you can visit the acer website and download the proper ones.

Nov 03, 2009 | Acer Aspire 5002WLCi Notebook

1 Answer

Can't find webcam


Have you manually install the Opearting system? Connect to internet and automatically search available dirver on the net. If the webcam dont even shows in device manager, install the complete firmware driver software of your laptop, this will enable the chip to operate to it maximum features and all devices attached will be detected, the thats the time you can install drivers in each device.

Oct 21, 2009 | Acer Extensa 5420-5687 Notebook

1 Answer

DVD Drive disappeared


you are probably running xp go to help and type in find new hardware sounds like somehow your drive got deleted in the hardware and device manager this will work with vista too unless the drive went bad naturally

Sep 28, 2009 | Acer Extensa 5420-5687 Notebook

1 Answer

My acer extensa 5420 had to be restored recently, now my crystal


download the driver from http://www.drivershq.com/Drivers/Acer/Extensa/5420/23419/23647/37421/13607/ModelDrivers.aspx

and go to device manager and try updating the driver manually pointing at the above downloaded driver..

restart the computer and try ur webcam.

Jul 10, 2009 | Acer Extensa 5420-5687 Notebook

1 Answer

Acer crystal eye webcam


You can go to the manufacturers website to check if you have the very latest driver for your webcam. if not, you should be able to download it from there.

Go to control panel, then system properties, then device manager, then hardware. check imaging devices to see if your webcam is recognized.

Mar 12, 2009 | Acer Extensa 5420-5687 Notebook

2 Answers

Acer Extensa 5420 lockout


I believe your windows is corrupt.
Try to reload your operating system, i have seen the windows corrupted and cause problem like yours.
If you have usb mouse (external), use the usb mouse and you can check in device manager,
I believe you will see many "!" mark on the drivers.

so solution is reload the operating system.
Good Luck


Oct 07, 2008 | Computers & Internet

3 Answers

Acer Extensa 5420-5687 Crystal Eye webcam


I had the same problem with the Extensa 5420-5687 as well, I went to the device manager and found my crystal eye webcam (there was a yellow exclaimation point on it) I tried to update the driver software by having it search automatically for the software, but it just said that it was up to date...that still didnt fix my problem. So i tried browsing my computer for the driver. I picked "let me pick from a list of drivers on my computer" I then clicked on "Acer crystal eye webcam" then i hit next, it then installed the updated driver. After that my webcam worked again!

Apr 29, 2008 | Computers & Internet

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