The sound on my laptop has suddenly stopped working, no devices are listed in the list of output and the volume bar and mute button are locked on mute

Similar Questions

• Two of the four USB ports on my laptop has suddenly stopped working!

  My laptop (HP Pavilion) has a total of 4 ports USB (two on the left side) and two on the right side all of a sudden my laptop developed this problem, two ports USB on the left side of the laptop no longer works... They didn't stop working completely, because I can still charge my phone via the ports, but they do not detect any storage device I plug into them. The other two on the right side work perfectly... I checked my mobile device manager and the defective thing only seems to me pointed out under "other devices", where the driver for 'Fresco Logic' hub USB root is not installed... it shows "the drivers for this device are not installed (Code 28)" Please, this could be the problem and where can I find the driver?

  Hello

  You are welcome!

  I am pleased that the issue is resolved. Since it works fine, I do not think you have to worry.

  However, you can check this link:

  http://support.Microsoft.com/kb/2654568?WA=wsignin1.0

  To find the version of ports, you can consult the HP manual (specifications).

  It will be useful.

• Adapter WiFi my laptop has suddenly stopped working.

  Operating system: Microsoft Windows 7 (32 bit)

  I was in the middle of my routine of navigation when all of a sudden:
  -My WIFI is out
  -Light network on my laptop (F12 key) turned RED
  -Not visible in Control Panel networks with wireless networks.

  I did something unusual or installed software or antivirus software etc., which could possibly cause this.

  So far, I tried on but none of them worked.
  -Deactivation and activation then the WIFI adapter.
  -Uninstalling, then reinstalling the latest driver for the WIRELESS card.

  -WiFi F12 key.

  Help, please.

   

  System Imformation:

  HP Notebook 1000 series

  Windows 7 Home Premium 32 bit

  RALink RT5390R wireless 802.11b/g/n 1 x 1 adapter

  I use my Microsoft Security Essentials antivirus.

   

  

  Umair salvation,

  Please provide detailed information about your question. I appreciate the step by step troubleshooting, and pain that you have taken to resolve your problem. However, there are a few steps more that we can try to diagnose the root cause of the problem.

  I would be grateful if you can provide us with the following information to help us better understand the issue.

  1. Are you able to connect any other wireless device to the same network?
  2. Are all the lights on the Modem/Router Green?
  3. Have you tried to connect your HP laptop with wired network? If so, was the same result?

  Problem with the random disconnection of a wireless network can be triggered for a variety of reasons. To find out the exact cause of the issue, I would recommend that you run the network troubleshooter utility.

  Network convenience stores

  This problem can occur if authentication enable IEEE 802. 1 X for this network checkbox is enabled. If this box is checked, but there is no server to authenticate the connection is interrupted. If you turn on the wireless network connection, it disconnects again after a short period.
   
  Method 1: Disable IEEE 802 authentication. 1 X

  To disable authentication IEEE 802. 1 X, follow these steps:

  • Click Start, type ncpa.cpl, and then press ENTER.
  • Right click on your wireless network connection and then click Properties.
  • Click the wireless networks tab.
  • Under preferred networks, click your wireless network, and then click Properties.
  • Click on the Authentication tab, click to clear the authentication enable IEEE 802. 1 X for this network
  • Check box, and then click OK twice.

  Method 2: Disable the IP assistance service

  • Hold down the Windows key and type R, type "services.msc" (without the quotes) and press enter
  • Scroll down to the IP assistance service, right-click on it and select Properties
  • In the drop-down list box that says "Automatic" or "Manual", set it to disabled and then click 'apply '.
  • Then click on "Stop" to stop the service from running in the current session
  • Click OK to exit the dialog box.

  Method 3: update the Firmware on the router

  Download and install the latest firmware for the router, in case the steps above fail to resolve the problem. If your router is Netgear, then you can follow the steps below.

  NET gear 3700 firmware update

  Hope it would help. If problem persists always post back with the current state of your computer and the result of the proposed suggestion, we will be happy to help you.

  Kind regards

• Tecra S4 - sound card has suddenly stopped working

  Hello

  I have a Tecra laptop S4 and the sound card has suddenly stopped working... It ceased to operate as last month and then started working again... but now it no longer works

  I am a computer tech for 14 years now...

  I downloaded the drivers from the toshiba web site and the sound card still does not work...

  I did a restore on the Toshiba as well and the sound card still does not work...

  Problems with Tecra S series with defective sound cards?

  I also have a Tecra S2 Portable and map its sudenly stopped working but after a few days after is started working again... weird huh?

  Hello!

  Can you please explain what you mean that it s not working do not?
  The sound card is listed in the Device Manager?
  You have activated the sound using FN + ESC?
  What operating system do you use?

  In your case, I will try to update the BIOS. You can find it on the Toshiba site.
  Check it!

  Good bye

• I get a window pop up this saying that internet Explorer has suddenly stop working. then it says microsoft is looking for answers. then he said: the program needs to close?

  I get a pop that says "internet exployer has suddenly stop working, and that microsoft is looking for a solution", and then he come back with another pop up saying "the program I've been in must stop"?

  First, run a full scan with the AV (anti-virus) program you have.
  Make sure that the computer is not infected.

  Then some tutorials for you to try:

  1 Internet Explorer does not start or stop responding
  http://support.Microsoft.com/kb/926449
  Note: It has an auto FixIt application. Use it.

  2. Internet Explorer Add - ons problem when IE hangs or freezes
  http://support.Microsoft.com/mats/ie_freezes_or_crashes/en-us
  Note: there also an Fix It self.

  3. to resolve network connectivity problems in Internet Explorer
  http://support.Microsoft.com/kb/936211

• my webcam application does not work on my windows 7. It has suddenly stopped working. I tried to install the drivers of webcam from the websites of toshiba, to no avail.

  my webcam application does not work on my windows 7. It has suddenly stopped working. I tried to install the drivers of webcam from the websites of toshiba. but after downloading the drivers, when I run the winrar files, he said inexecutionable. Please help.also when I run the compatibility of the test program, it says the webcam application or incompatible, even if it worked very well earlier.

  See the help/support site Tosh or their forums.

  Have you recently updated of your drivers from somwhere system other than Tosh site or installed any new programs or perform any maintenance operation.

  Program compatibility test cannot be invoked

• Adobe Photoshop CS5 extended. The Liquify Filter has suddenly stopped working. Help!

  My Liquify Filter has suddenly stopped working. Any ideas?

  Check that you do not have the background show checked and the value of the opacity to 100%.

• keyboard has suddenly stopped working

  Hi all, my keyboard has suddenly stopped working. I was installing an upgrade of El Capitan (later) and when the computer is restarted, it gave me this message that the bluetooth keyboard was not detectable. Well, I don't have an external keyboard, just the Interior came with the laptop. I have reset the pram and it still does not work. I looked at the system preferences and beach seems to be in check. Is it time to this service or do I still have options?

  Thank you

  Nadia

  Try resetting the SMC http://support.apple.com/kb/ht3964

• device cd/DVD problem has suddenly stopped working?

  the dvd/cd device on my hp g62 has suddenly stopped working I tried to fix, but no swallows someone can help?

  Hello

  Check with HP Support, their online documentation and drivers, diagnostics,
  and ask questions in the forums about known problems.

  Support HP & drivers
  http://welcome.HP.com/country/us/en/support.html

  Contact HP
  http://welcome.HP.com/country/us/en/contact_us.html

  HP forums
  http://h30434.www3.HP.com/PSG/

  ----------------------------------------------------------------------------------------------------

  Follow these steps to remove corruption and missing/damaged file system repair or replacement.

  Start - type in the search box - find CMD top - RIGHT CLICK – RUN AS ADMIN

  sfc/scannow

  How to fix the system files of Windows 7 with the System File Checker
  http://www.SevenForums.com/tutorials/1538-SFC-SCANNOW-Command-System-File-Checker.html

  Then run checkdisk (chkdsk).

  How to run check disk in Windows 7
  http://www.SevenForums.com/tutorials/433-disk-check.html

  ==========================================================

  After the foregoing:

  References to Vista also apply to Windows 7.

  Step 1: Please do all the same underneath if you did some before as is often total
  a process that solves the problem.

  Try this - Panel - Device Manager - CD/DVD - double click on the device - driver tab.
  Click on update drivers (this will probably do nothing) - RIGHT click ON the drive - uninstall.
  RESTART this will refresh the default driver stack. Even if the reader does not appear to continue
  below.
  
  Then, work your way through these - don't forget the drive might be bad, could be a coward
  cable or slight corrosion on the contacts (usually for a laptop) and other issues.

  Your CD or DVD drive is missing or is not recognized by Windows or other programs
  http://support.microsoft.com/kb/314060 - a Mr Fixit

  Try this fix manually if the Fixit 314060 does not work
  http://www.pchell.com/hardware/cd_drive_error_code_39.shtml

  Your CD or DVD drive is missing or is not recognized by Windows or other programs-
  a Mr Fixit
  http://support.Microsoft.com/kb/982116

  The DVD player does not work after installing Windows 7
  http://support.Microsoft.com/kb/975270/

  The CD drive or the DVD drive does not work as expected on a computer that you upgraded to
  Windows Vista
  http://support.Microsoft.com/kb/929461

  When you insert a CD or a DVD, Windows Vista may not recognize the disc
  http://support.Microsoft.com/kb/939052

  Your CD or DVD drive cannot read or write media - A Mr Fixit
  http://support.Microsoft.com/GP/cd_dvd_drive_problems

  CD/DVD drive does not appear in Windows Vista, or you receive this error during Windows Vista
  Setup after booting from the DVD (AHCI)
  http://support.Microsoft.com/kb/952951
  Drive CD - R or CD - RW Drive is not recognized as a recordable device
  http://support.Microsoft.com/kb/316529/

  Hardware devices not detected or not working - A Mr Fixit
  http://support.Microsoft.com/GP/hardware_device_problems

  Another possibility is that the cables are loose. Remove ALL power, then make sure that the cables in both
  ends. Remove and replace, do not just tight. For laptops, you can often clean power and
  contacts data with a pencil eraser.

  Some DVD players do not use the Windows default drivers so check with the manufacturer of system and
  manufacturer of device to see if there is a firmware or drivers for your drive if necessary.

  ===============================

  Step 2: You have disc problems as the CD/DVD is actually 4 discs in 1 case (CD & DVD
  Burn and CD and DVD read). So it is not unusual for 1 or 2 operational so that other parts
  do it right.

  Did you follow the Troubleshooting Guide for the reader who still does not work? There are
  the entries in registry that the troubleshooter does not solve and those who "might" be the cause.

  Check with your Maker system and a device for the two possible firmware updates and the
  correct registry entries for your car.

  Here are the keys that I of course are those in question - for the subkeys of the CD/DVD drive
  as there will be other subkeys in these keys. Do not forget to ask specific keys involved as well as
  the parameters.

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\System\CurrentControlSet\Enum\IDE

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}

  -----------------------------------------------------------------------

  You can probably find more info here and maybe even the exact registry settings for your
  CD/DVD drive someone with the same model.

  Forums - a lot of expert real help
  http://Club.myce.com/

  CD/DVD units
  http://www.myce.com/storage/

  Use DevManView to locate the CD/DVD in the registry (be careful and do a prior Restore Point)
  nothing change) - find the DevManView device and then make a right click on it free in RegEdit.

  DevManView - free - an alternative to the standard Windows Device Manager, which displays
  all devices and their properties in flat table, instead of the tree viewer
  http://www.NirSoft.NET/utils/device_manager_view.html

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• 6457 - Lenovo T61p has suddenly stopped working!

  My Lenovo T61p 6457 has suddenly stopped working.

  When I turn it on I see the power and drive green lights HARD turns on and since another computer on my network I can access individual files on the hard drive the T61p.

  However when I connect the T61p via a VGA cable for an external monitor to work I don't see Windows or images on the screen!

  Do you think it is just a problem with the screen or is there something else?

  The screen currently installed on the T61p 6457 is WSXGA 1680 x 1050 (Samsung LTN154P2-LO5).

  I found a job WUXGA 1920 x 1200 with inverter and cable in the box of original case Lenovo T61p high - that will work in my T61p?

  
  

• My 12 year, Canoscan 8800f has suddenly stopped working.

  My 12 year, Canoscan 8800f has suddenly stopped working. When I press the power button that a light inside, but after a bit of whiring it turns off and the scanner goes off. Is there a solution or do I have to buy a new scanner?

  I'd still get a new.  They are not too expensive and they have added a lot of features such as instant on and LED light bulbs.

• My screensaver that shows pictures of "My pictures" has suddenly stopped working.

  My screensaver that shows pictures of "My pictures" has suddenly stopped working giving the error message "this application has failed to start because MSVCR100.dll was not found. Reinstalling the application may fix this problem"I use Windows Vista Home Premium with a 32-bit operating system.

  Where I go/glance to re - install this file?

  Hello

  Have you made changes on the computer before this problem?

  I would suggest trying the following methods and check if it helps.

  Method 1:

  Try the steps in the following Microsoft article and check if it helps.

  A screen saver that displays the images stops working in Windows:

  http://support.Microsoft.com/kb/2425702

  Method 2:

  Try to uninstall all existing Microsoft Visual C++ Redistributable Package and install the latest Microsoft Visual C++ 2010 Redistributable Package and check if it helps.

  Step 1:

  To uninstall the package:

  a. open programs and features.

  b. in the list, find the Package redistributable Microsoft Visual C++ and click on it.

  c. click on uninstall at the top of the list.

  Step 2:

  Download and install the latest package for the version of Windows Vista, you use and see if it helps.

  My PC running the 32-bit version or 64-bit Windows?

  You can check the below links to download the same.
  Download details: Microsoft Visual C++ 2010 Redistributable Package (x 86)

  Download details: Microsoft Visual C++ 2010 Redistributable Package (x 64)

  Method 3:

  Run the scan tool (SFC) System File Checker and check if it helps.

  How to use the tool File Checker system to troubleshoot missing or corrupted on Windows Vista system files: http://support.microsoft.com/kb/929833

  Hope the information is useful.

• My hp psc 1350 all-in-one has suddenly stopped working.

  My hp psc 1350 all-in-one has suddenly stopped working. I can no longer open the software by clicking on the icon in the dock.

  Sorry, but I thought that I had reported my all-in-one had started working again. Unfortunately, I can't say what went around, because I don't know.  I had only a small part of the way towards what we'll fix me it when he started to work again. I remember that there was a step that I have been unable to finish, and when I asked how to overcome this problem, it started working again. I don't even have the chance to follow the final instructions. I would rather know what was wrong and what are the fixed elements, but I'll have to settle for a working machine.

• My DVD/CD drive has suddenly stopped working under Windows 7

  Ive been using Windows 7 for about 6 months now with on any trouble until recently my DVD drive has suddenly stopped working. Windows detects the drive but when I double click on it in my computer it says please insert disc. I find the drive in Device Manager and windows recognises that there is an error that says:

  Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might be installed a file that is signed incorrectly or damaged, or maybe it's a malicious software from an unknown source. (Code 52)

  I tried to uninstall the drivers in Manager device and rebooted the computer to let auto windows find the driver and reinstall it but to start, I get a message that says:

  Device not installed driver software

  I know that the drive is fine because it works fine in Ubuntu Linux system he worked great in windows 7, so stopped. any help would be greatly appreciated. Thank you.

  Go to the Web site of the factory, download the driver appropriate for your device. Uninstall the driver that is currently installed and uninstall the device in Device Manager. Reboot... After you restart, you have 1 of 2 options depending on how the software is packed from the manufacturing. (A) put an end to the automatic Windows installation feature and use the downloaded software to take care of it for you... If that's how it is set up to operate or (b) wait for windows to auto-trouvez and try to install the device, and when he asked the pilots to open and extract files downloaded to any location you choose and point the installer of windows in this direction.

  Jonathan Matthis aka "7test" on MSN QnA
  Chief Administrator of the Site
  Windows 7 QnA
  http://Windows 7qna.ning.com

• Windows Live Mail has suddenly stopped working

  My Windows Live Mail has suddenly stopped working.  I get the error message below.  I contacted Time Warner - talked to 3 different technicians, each gave different instructions, of which none has solved the problem.  I contacted Microsoft and they said that they do not support Windows Live Mail.   I am able to access my e-mail through Time Warner Webmail, but I want to get Live Mail works again.  Can anyone help?

  Can't send or receive messages on behalf of Wi.rr (jxxxxx). Windows Live Mail could not open a session secure e-mail server using password authentication. Contact your e-mail provider and verify that it supports secure password authentication. To change the connection setting, in the folder list, right-click on the account name, and then click Properties on the shortcut menu. In the Properties dialog box, click on the servers tab, and then under incoming mail server, select a logon option.

  Server error: 0x800CCC90

  Server response:-ERR an authentication mechanism MUST be entered

  Server: 'mail.twc.com '.

  Windows Live Mail error ID: 0x800CCC18

  Protocol: POP3

  Port: 110

  Secure (SSL): No.

  Windows Live Mail could not open a session using authentication Smail server fix Password has.

  I don't think it's something that 'suddenly' happened. Does not support the server you connect to SPA, so if you have this option, you will be not be been able to connect to this server. You may have changed the setting to try to solve another problem?

  Right-click on the account name in the folders pane, and then select Properties. On the servers tab, select connect with authentication in clear text. Then try send/receive for this account. If you see an error message, please copy and paste into your answer.