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Main Forum => General Computer Support => Topic started by: parsgome on December 12, 2014, 11:06:20 am

Title: Keyboard keys not recognized by OS
Post by: parsgome on December 12, 2014, 11:06:20 am

Computer: Win 7 home premium x64, 6.1.7601 service pack 1 build 7601

Keyboard is  recognize at start to get into bios. once OS boots nothing, i have to use  the on screen keyboard. tried three different kybd two usb, one wireless . all 3 work on another computer  no problem. I have tried all 3 kybds in all usb drives-nothing. i updated drivers nothing . i removed drivers and let windows update install ...installed fine but not work. ran avg,antimaleware, ccleaner, adaware, microsoft fix it and your tweaking program. my keyboard still working with os. short of reinstall any ideas?

Title: Re: Keyboard keys not recognized by OS
Post by: Boggin on December 12, 2014, 03:23:56 pm

Go to your computer or motherboard support site and download the Chipset drivers - if you are using AMD architecture then you will need  the video drivers.

However, when I've run the AMD auto detect and got the latest Win 7 drivers for mine, it has put a red hue on my screen so had to roll those back.

Title: Re: Keyboard keys not recognized by OS
Post by: jraju on December 13, 2014, 02:44:37 am

Hi, Boggin
                     KB is plug and play is it?. Then what is the problem the thread owner has? would you kindly say

Title: Re: Keyboard keys not recognized by OS
Post by: Boggin on December 13, 2014, 05:58:43 am

As it's an USB keyboard and even though drivers have been updated, it could be the BUS Controller (can't quite remember what they call that but I know what I mean  :smiley:) as the OP has uninstalled the Host Controllers etc. and Windows has reinstated those without resolving.

The South Bridge of the Chipset drivers looks after those and downloading those could resolve.

Title: Re: Keyboard keys not recognized by OS
Post by: jraju on December 14, 2014, 06:31:10 am

Hi, Try this fixit by downloading and running. It should fix unrecognized hardware connected to the computer
http://support2.microsoft.com/mats/hardware_device_problems

Title: Re: Keyboard keys not recognized by OS
Post by: Shane on December 15, 2014, 02:31:18 pm

If the keyboard is working in the bios then the problem is the keyboard or chipset drivers. You dont need chipset drivers for a usb.

Once windows is loaded go to the device manager and have it set to show hidden devices. Do you have any problems with any of the USB devices in the list? Also remove any and all keyboard items and such as well to force Windows to install them new. :wink:

Shane

Title: Re: Keyboard keys not recognized by OS
Post by: Boggin on December 15, 2014, 04:12:26 pm

The flow chart in this article is what I was referring to regarding the Chipset South Bridge and USB ports http://www.pantherproducts.co.uk/index.php?pageid=chipset and http://www.dell.com/support/article/us/en/19/SLN148687/EN

Title: Re: Keyboard keys not recognized by OS
Post by: Shane on December 15, 2014, 05:49:25 pm

USB 2.o doesnt normally need any chipset drivers installed to work since the defaults wok, USB 3.0 however does need those drivers.

BUT the chipset drivers are always important and so should always be up to date :-)

Shane