I installed audio drivers but device manager shows a yellow triangle o

[babar atiq]

I have
windows 7 professional x32
acer veriton 7600G
80GB hard disk
1GB installed ram and 4GB ready boost usb device
90m motherboard and
3.12GHz to 3.19GHz processer
BUT NOT AUDIO OUTPUT all the time
around two years back my brother installed windows XP on this pc and everything was fine
after that he installed windows 7 and that was running well
but after some times audio drivers started vanishing some times when I use to start my pc for first time in the day audio drivers were vanish and on restart drivers were there again. situation stayed same for 1 yera .
I reinstalled windows 7 but this time drivers were totaly gone .
I installed drivers from internet, from DVDs stilll helpless .
I tried to instal;l win XP but some of the files were not copying in the system , so reinstalled other version of 7 home premium home basic , professional. ultimate, no difference with this as well.
once my drivers were installed successfully and thee was audio output with the same problem of on 1st start audio is vanish and on restart t was back again.
now I am sick of this condition, I have downlaoded and installed real tech HD audio codec drivers and thoes are shown installed in control panel and raeltech files are there in localdisk C in the fiolder of program files but device manger is showing an exclemation mark on audio device sign, and says
NO AUDIO DEVICE IS INSTALLED
please provide me a solution
I am a student of a virtual unioversity and without audio putput I cannot attend my lectures

 

[x BlueRobot]

Please open Device Manager, and then post a screenshot of the Properties for the device with the :warn: triangle. I would also suggest ensuring that your audio/sound card is connected properly, or if it's a onboard sound card then it may even be broken.

How old is your computer?

Update your System Specifications with Speccy, and then copy this information into your System Specifications: Go to your UserCP, and then select Edit System Spec in the left pane. Copy the information from Speccy into the required fields. These System Specifications will then follow your every post.

I would strongly suggest installing some form of ant-virus protection on your computer.

Install and perform full scans with:

• Malwarebytes : Free anti-malware download
• Microsoft Security Essentials | Protect against viruses, spyware, and other malware

   Information

Remember to install the free version of Malwarebytes not the free trail; untick the free trial box during installation. MSE is the most lightweight and compatible with the Windows 7 operating system

You can also view this thread for a complete free and lightweight security protection combination:

• http://www.sevenforums.com/system-security/206705-good-free-system-security-combination.html

 

[babar atiq]

hera are 2 screen shots of you told me about
my PC is 10 years old
I havent installed any antovirus program because taht slows down internet speed, alraedy I am facing slow speed problem I pay for a 3gbps downlaod and 1gbps upload internet but enjoy aroound 500kbps download only
and here are a few things spycc told me a bout my PC
I preformed a full scan in windows scan utility
and willl install an anti virus soon
best ragards

 

[x BlueRobot]

A anti-virus program isn't going to affect your broadband or connection speed at all. Your computer is 10 years old, so it's very likely that the onboard sound card is going to be broken.

 

[babar atiq]

thanks for listening to me friend
on your advice I have installed AVG anti virus and have scanned my PC no malware or virus was detected.
I simpley reintalled the audiorivers and after the installation was completed and set up asked me to restart my pc immediately
I chose to restart later because I was downloading video lectures file ,so I restarted my PC after 10 or 12 minutes and this time difference was that I removed my speakers from the rear ports and attached my headphone and microphone in the front ports and audio output was posssible this time.
today when I first time started my pc and plugged it in wall socket I again removed speakers from raer ports and attached headphones in front ports. when desktop appeared there was a red x on speaker that vanished after a minute or two. and after red x vanuished I attached my speakers in the raer port and now,I am attending my video lectures.

thanks once again

 

[x BlueRobot]

My advice was never to install AVG
It was these security programs:

Install and perform full scans with:

• Malwarebytes : Free anti-malware download
• Microsoft Security Essentials | Protect against viruses, spyware, and other malware

   Information

Remember to install the free version of Malwarebytes not the free trail; untick the free trial box during installation. MSE is the most lightweight and compatible with the Windows 7 operating system

You can also view this thread for a complete free and lightweight security protection combination:

• http://www.sevenforums.com/system-security/206705-good-free-system-security-combination.html

I'm glad your sound is working now, or you can least attend your video lectures

 

[babar atiq]

thanks for your wishes
now I have uninstalled AVG because taht made my pc slow
my pc have only one issue and that is MOTHER board.
I will buy a new one when ever I got enough money.
or a new PC if possible
I am sick of my PC manufacturer I am over of fighting with this slow and less efficent PC .:shock:

 

[x BlueRobot]

Well it is 10 years old