Question about IBM R40 Centrino Notebook

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Unknown device in the system i have unknown device disable .what should i do?

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It is driver of your motherboard missing files, try to re install the driver..

hope this may help;


Posted on Jul 30, 2008

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The Device Manager on Windows does not find my webcam. Instead it says Unknown Device. Any one have a fix for that?

You need to manually install the driver for the webcam, go here - HP ProBook 4520s Notebook PC and select your operating system, then expand the Driver - Keyboard, Mouse and Input Devices section and your webcam driver should be there, download and install it, and then restart and that should resolve your issue

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USB port problem, need help or advice. My son has a Toshiba Satellite A305-S6916 laptop. It only has 3 USB Ports. It is a dual core 3.0. It has Two USB ports on the right side and one USB port on the

Hey! Thanks for using the forum! I will try to help you.
First off all what happends when you plug in a usb device? Let me kno, after that step i can help you further!

Nov 06, 2014 | Computers & Internet

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I am facing no audio output for hp pavilion dv4000 laptop with windows 7 ultimate

While online, Right click on my computer then go to device mangers click go to audio devices right click then go to update device driver or update driver

Aug 21, 2014 | HP Pavilion dv4000 Notebook

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Toshiba Portege R500 hangs when starting up.I have to shut it down again and then start it up for it to work properly.It has windows 7 installed in it

Perhaps you need to disable some of your startup programs. You have ugraded to Win 7? Has this been happening due to the Win 7 upgrade? In Device Manager are ALL the devices working? No unknown devices? Any graphic driver issues?

Jan 11, 2013 | Toshiba Portege R500 Notebook

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How do i turn the wireless radio on, is there a physical switch on the machine or keyboard?

The D600 has no hardware switch. Does the wireless device show up in your hardware device list? (Start/Control Panel/System/Hardware tab/Device Manager button/Network adapters). Mine shows up there as a Dell Wireless 1450 Dual band mini-PCI card. There are others that it could be. If it appears, double click on it and check it's device status. If no wireless appears there, then look for a possible unknown device under 'other'. If it is under 'other' then you need a driver.
Also, click Start/Control Panel/Network connections. You should see the wireless listed there. It could be disabled. Right click on it for options.
A lot more could be said, but try that for now.

Apr 22, 2010 | Dell Latitude D600 Notebook

1 Answer

My laptop says there is no sound driver installed. it was aorking fine till now what do i do

Well first check device manager and make sure it is not installed, secondly identify if there is any unknown devices in device manager, if not then the device has either been disabled or is having a serious conflict, now reboot the computer and while its rebooting check the bios to see if the peripheral devices has the onboard audio disabled, if that is what it is, then after it reboots double check the device manager and make sure the device has not been reinstalled and there is not any unknown devices.

Oct 29, 2009 | LG X-Note LM50 Notebook

1 Answer

How do i turn on sound card on my laptop gateway nv52

Look in your device manager is the system for any "Unknown Device". right click it and in Properties, disable it and restart the computer. It should install itself, or if this doesn't work, try updating all the audio drivers. You'll probably need to restart it after that, too

Sep 03, 2009 | Gateway Computers & Internet

1 Answer

Unknown device

Update your Unknown device while in you device manager
Update the device then shut down and restart
Uninstall the device from device manager ,right click on the device then uninstall,
Shut down and restart,
the device will be automatically found by your Operating System and reinstalled automatically too,

Hope this helps,
Cheers Misterdj

Aug 05, 2009 | Acer Aspire 4520-5582 Notebook

1 Answer

No wifi after re-load of xp system software

Did you reinstall the drivers for the device? Check the Device Manager for your system and see if Windows sees the wireless device. If you have a red X, the device is disabled; if you have either an unknown device or the wireless device with a yellow dot with a black exclamation point, then either the driver is not installed, or the driver is improperly installed.

Mar 24, 2009 | HP Pavilion zd8000 Notebook

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