Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: No Audio Output Device installed

06 Oct 2009   #1
Birdo

Windows 7 Professional
 
 
No Audio Output Device installed

Here are my computer's details:
- HP Pavilion dv6915nr Entertainment Notebook PC
- NVIDIA GeForce Go 7150M/nForce 630M
- AMD Turion X2 64
- Windows 7 Professional Installed

Like everyone, I had windows 7 (32-bit) working perfectly when I did a fresh install. Originally, I had Windows Vista on this laptop, but I converted to 7 as son as I got the chance. In fact, a few of my mic driver problems with the RC were solved with this new one. Anyway, I ran my antivirus (Malwarebytes' Anti-Malware), and it identified 4 trouble spots. I trusted its judgement, I rebooted, but I came back with no audio whatsoever. I hover my mouse over the speaker icon in the tray, and all it says is "No Audio Output Device is installed." I try to troubleshoot it, I click on it, and it offers to download the specific driver. I downloaded it, installed it and rebooted, several times, and I still come back with no audio at all.

I checked the log that my AV makes, and, concerning the files it found, it says this:
"Files Infected:
C:\Windows\System32\drivers\drmk.sys (Spyware.Zbot) -> Quarantined and deleted successfully.
C:\Windows\System32\DriverStore\FileRepository\wdmaudio.inf_x86_neutral_aed2a4456700dfde\drmk.sys (Spyware.Zbot) -> Quarantined and deleted successfully.
C:\Windows\winsxs\x86_microsoft-windows-iis-sharedlibraries_31bf3856ad364e35_6.1.7600.16385_none_10bfc8e81625ecbd\iisreg.dll (Spyware.Zbot) -> Quarantined and deleted successfully.
C:\Windows\winsxs\x86_wdmaudio.inf_31bf3856ad364e35_6.1.7600.16385_none_603daf367b793e32\drmk.sys (Spyware.Zbot) -> Quarantined and deleted successfully."

I checked the Device Manager in the Control Panel, and under "Sound, Video, and Game Controllers" there are two devices: "Conexant High Definition SmartAudio 221" and "Microsoft Trusted Audio Drivers", each with a flag next to the icon. In the Properties of each one of them, in the Device Status in the General Tab, it says "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)"

I try to update the driver for both of them, and I click "Search automatically for updated driver software" and after a little time, it says that "The best driver for your device is already installed."

I tried going straight to NVIDIA's website and downloading and installing the drivers from the Support section as well. But that's not getting me anywhere either!

I remember seeing something about a co-processor somewhere, but I can't remember.

Can anyone help me? I need my audio!


My System SpecsSystem Spec
.
06 Oct 2009   #2
Antman

 

Device Manager
Uninstall the offending devices
Boot


Report results
My System SpecsSystem Spec
06 Oct 2009   #3
Birdo

Windows 7 Professional
 
 

I uninstalled Malwarebytes' Anti-Malware

Then I rebooted

Everything's clean as a whistle....

This is the weirdest fix I've ever encountered my AV was the problem? Now I need a new AV, maybe Microsoft's Security Essentials will do me one better.
My System SpecsSystem Spec
.

Reply

 No Audio Output Device installed




Thread Tools




Similar help and support threads
Thread Forum
No Audio Output Device Installed Error (Code 52 on my audio devices)
Hello there, I have an error in my Windows 7 with the audio, "No Audio Output Device Installed." I checked the playback & recording devices, but none are installed. I checked for hidden devices, but there wasn't any. So I opened the Device Manager, and checked the "Sound, video, and game...
Sound & Audio
No Audio Output Device is installed, HDMI Audio Out Works
No sound. Little speaker with the red 'x' appeared yesterday I have gone through the whole update drivers circus to no avail, my laptop can't detect that it has speakers built in so it doesn't bother finding a driver for them. This is where I am at: - Intel Display Audio is the only driver...
Sound & Audio
No Audio OUTPUT Device is installed
I upgraded my computer to Windows 7 Ultimate 32bit and im having problems installing the Realtek sound driver that's compatable with my computer. Every time i install it it says i dont have acces to memory location. I tried every solution on the internet but nothing worked. Please help me, im...
Sound & Audio
No Audio Output Device Installed
Alright, I give up. I've tried everything I can think of to fix this damned problem so now I'm left with no choice but to seek outside help. So, last night I updated windows after a minor leave of absence from doing so. and once everything was configured my computer started insisting I had no...
Sound & Audio
Realtek Audio: No Audio Output Device is Installed
Hello. Im having the dreadful "No Audio Output Device is Installed" problem on my realtek audio. It worked some months ago, but im in no position to do a roll back. Im sure the hardware is just fine, it works with Ubuntu. The computer is a Dell Vostro 430. My OS is win7 64bit. I tried...
Sound & Audio


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 09:32.
Twitter Facebook Google+