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BIOS setting changed

BIOS setting has been changed my laptop is not able to operate properly.some of the drivers not working properly like sound, bluetooth, lan, wi-fi etc.

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Pressing f8 or the DEL key or maybe even f6 will take you back to the bios on startup

you should see a quick message telling you which key to press on startup

Posted on Jun 29, 2009


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How to format a laptop and start fresh

Have an operating system installation disk available... You must have a valid Microsoft Prod. Key with it.. You'll need to use it during installation.. Boot up (start) the computer with the operating system disk already in CD /DVD player. If your bios (motherboard settings) are set correctly, the computer will start and it will lead you through the installation procedure.. If you can't get it to boot from the disc, your bios needs some settings changed..(boot order settings)... It might be better if you have somebody more experienced to do this, if that is the case. It can become even more complicated. You might have to search for the proper drivers to install in that computer, also.. like drivers for your sound, your wifi or ethernet connection, printer, etc. etc.. The whole thing can be a can of worms if you don't know something about it. BUT, it would all be a good learning experience for you, if you have the perseverance to fight your way through it.. Good Luck..

Jan 16, 2013 | HP Pavilion Computers & Internet

1 Answer


Try installing the latest audio driver.
You can download the audio and device drivers from Dell WEB site,the support download page. Make sure you select your model desktop or laptop,better still, type in the Service Tag number, it is printed on the label on thebottom of the laptop and on the back or sides of a desktop. (If the Service Taglabel is missing then go into the BIOS setting and on one of the BIOS pages,the Service Tag number will be displayed). This will open the page where thespecific drivers for your model computer are located. Also make sure you selectthe Windows of the drivers for your Windows operating system. Click on thislink to download the drivers: -

May 18, 2012 | Dell Computers & Internet

1 Answer

The sound has stopped working on my Dell Inspiron 700m. Have checked the Sound and Audio Devices in my Computer but all looks ok!

Hi andrewc489


You don't say which Operating System you use, so my answer will be presented in general, Windows terms. If yours is a non-Windows Operating System, consider applying the logic and principles involved here to your own Operating System and, if in doubt, please feel free to add a Comment or Clarification to this Question.

Make sure the Audio function in BIOS is 'Enabled' and then save those new BIOS settings.

To enter BIOS Setup, Press 'F2' or 'Del' during the first POST Screen at Start Up.

Also, check the status of the Audio Device and the Audio Driver in Device Manager.

Start > (My) Computer > (System Properties) View System Settings > Device Manager

This will tell you if the Audio/Sound Device is installed and functioning properly and if the Audio/Sound Driver is installed properly. If a red 'x' or a yellow question or exclamation mark appears next to the Audio/Sound Device, then there is probably a settings anomaly, fault, error or conflict with the Audio Device and/or its Driver.


For your Audio/Sound Device to function properly, it must be set as the Default Device:

Start > Control Panel > (Hardware and Sound) Sounds Speech and Audio Devices > Sounds and Audio Devices > (Manage Audio Devices) Audio > click on the Drop Down Menu to the right of "Sound Playback - Default Device" (preferred Default Playback Device) > select "Sigmatel STAC 9750 AC97" > Apply > OK > Restart computer.


Re-install the correct Audio/Sound Driver that relates to both the Audio/Sound Device (SIGMATEL STAC 9750 AC97) and your Operating System, then restart the computer. Install the Audio/Sound Driver either from the motherboard's Drivers and Utilities CD or from here:

If your Operating System is not the original Windows XP for which this Notebook was designed, then it is highly probable that no Audio/Sound Driver exists for that Operating System.

If you are committed to both this Notebook and an unsupported Operating System but all the other Devices and their Drivers are functioning normally except the Audio Device or you are using XP but the Audio/Sound Problem remains unsolvable (faulty Audio/Sound Chip), then consider buying and installing an external USB Sound Card that is pre-confirmed as being compatible with your Operating System. They are inexpensive. See example:

I hope this helps.

If this Answer goes some way towards helping to resolve your Query, Problem or Fault, please take the time to Rate it. Doing so helps Solution Providers, like me, better understand the needs and the point of view of Askers, like you, and guides us in exploring the best ways to provide the most comprehensive, useful and high quality Responses and Solutions we can. If you need further help, please do not hesitate to post another Question or add a Comment to this Question.

Sep 24, 2011 | Dell Inspiron 700M Notebook

1 Answer


First option: Go to bios setting power on your PC then press F2 or DEL if you see bios setting highlight advance setting then search for audio device need enable and press F10 to save and exit.
boot to your operating system, try see device manager for sound hardware detection.if detected just install sound driver.
Second option: if you do first option not yet working sound card. I recommend you purchase USB sound card's very easy to install.

hope can help you.

Jun 13, 2011 | Computers & Internet

1 Answer

I have compaq presario cq42 laptop with window 7 professional operating system. my problem is that i can't adjust or decrease the screen brightness by using function key (f2 and f3). please suggest me

Now New Model Laptops Come with Fn+Multimedia Keys this Model Laptop Same Tpye. If You Change Settings Goto Bios Change "Fn Keys Behaviour" menu. OR Using Without Pressing Fn Key only Press Drictly Fn keys. Again Same Problem Please Install Quick Lanuch Button Driver (this software Working Properly Please Install .Net Frame Work First) Form Compaq Site under Software - Soultion Category (Select Proper OS)

Apr 08, 2011 | Compaq Presario CQ56-115DX Laptop

1 Answer

I have 500 gb hard disc that working properly for 6 month but now not working properly


Please install to another computer, and if the problem is same,change the cable ,You can go to setup bios ,please follow the link,

It may be the operating system has not recognized all the ports, if you operating system is now ok, go to my computer>properties>hardware>device manager, and look to bottom of the list to USB Controllers.

right click on them, and Uninstall all controllers and restart pc and see if all the ports are recognized and installed automatically.

Go back to the controllers after restart and ensure there are no'!' marks or no 'X' against any controllers

If the problem is same do the next,Set upo
SETUP BIOS YouTube - Acer aspire 5580 Main Unit Disassembly.flv Repair4Laptop: Laptop & Notebook Repairing, Upgrading and Modding Guides: by Manufacturers Laptop Parts 101 CD-Rom support from Bios Phoenix BIOS setup and help BIOS - The setup program used in desktop and laptop computers/PCs - Page 1 of 2Hope this helps,

Jan 25, 2011 | Computers & Internet

1 Answer

My dell inspiron lap top have some problem showing while shows some error occured ,please check your syste and hardware properly installed..if it is second time shut down your system to...

This may be due to driver compatibilty and misconfigured BIOS.Make sure you installed the right drivers for your hardware with the operating system installed and check you have all the patches and updates for your hardware and operating system are installed.And set the Bios setting to load it default or optimize setting.

This will solve the problem

Dec 23, 2009 | Dell Inspiron 1525 Laptop

1 Answer

Toshiba A200 sound problem ''no audio devices installed'' error

its the driver update . revert to your last good sound then check web for download adresseing your problem sometime just some small setting changes does it any other

Jul 31, 2009 | Computers & Internet

1 Answer

Inspiron 1501 DVD RW is tempramental

hardware related probably cause it sounds like the main board inside of that drive is having problems communicating with the motherboard since thats where it connects to.

I would still reset the defaults in the BIOS though to make sure its not a setting that is affecting the drive. If it still acts up then you know its not a BIOS issue.

Get another known good working dvd-rw drive in there then turn on the laptop and that should stop the system from doing the weird lockups, slowdowns etc. Plus when you go into the BIOS it should see the drive as it is properly as well.

Jun 28, 2009 | Dell Inspiron 1501 Notebook

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