Only the correct connection and configuration of the computer can guarantee high-quality sound reproduction. This process is not difficult at all. Simple recommendations and full adherence to them will help you avoid the mistake called “ Audio Output Device not installed".
The main reasons for the lack of sound on the device
To identify the causes, it is necessary to pay special attention to the operation of headphones, speakers and sound card. It is very important to understand exactly when there is no sound. If it is missing when playing the game, then you need to check whether the game settings are set correctly. Only reference recommendations will help solve a problem of this nature.
If the problem occurs in the operating system, then the first thing to do is to carefully check it for viruses. For these purposes, you can use either an antivirus or a hotel one. This procedure will help get rid of problems that may arise in the future. Even if all the settings are made correctly, but there are viruses, this can lead to serious malfunctions in the operation of the entire system.
If, nevertheless, the antivirus program blocks the game process or any other process, then it is possible until the game is running. After exiting it, you must reactivate the antivirus.
If no viral infections are detected, and a detailed check of peripheral components has been carried out, then you can safely turn on the sound. If the error occurs again, then the problem is most likely in the operating system drivers.
Sound devices
Often, when assembling computers, manufacturers build in sound cards. Therefore, their owners only need to connect the plugs from the headphones into one connector, and from the speakers into the other. The entire process must follow a certain pattern. Connectors with different colors differ in function. Green color corresponds to devices that reproduce sound - headphones, speakers. The pink connector is used to connect a microphone. Even if the nests are not color coded, then miniature pictures must be shown next to them.
We connect the plugs to the appropriate connectors, after which the sound should be played. If this does not happen, then the problem is in the drivers.
Checking drivers
The main reason for the error is incorrect installation of drivers. You can prevent its occurrence if, when purchasing a computer, you check the availability of distribution kits of the main software, including drivers.
If there are none, then you need to clarify the model and brand of the sound card so that you can then download them to your computer. You can also use special programs, thanks to which the search for drivers will be without problems. Then you need to configure the drivers. If there are problems with them, the system will indicate this by the appearance of a yellow triangle, inside of which there is an exclamation mark.
As soon as the sound card appears, you need to select the item called “Driver”. Then we download all the updates. Often the process occurs in automatic mode. If the download of updates is interrupted, then immediately select the “Roll Back” function. This will allow you to install the initial version, which can be safely updated in the future.
After restarting the computer everything should work fine. However, if it doesn’t work out, then you need to start restoring the system. We go to “Point”, go to “Programs”. We find a checkpoint and restore the OS. In 99% of cases, this is what helps to forget forever about the error that previously interfered with high-quality reproduction sound.
In order for the sound to be displayed correctly by your audio device, you need to perform a comprehensive setup that will avoid many problems. But even when everything should work, it happens that a person receives a message that the audio output device is not installed. Let's see how to fix this error, especially since it occurs quite often.
Causes
As practice shows, the problem most often occurs among users of the Windows 7 and Vista operating systems. If the speakers or headphones show no signs of life, then you need to “cure” the problem. Often the reasons are simple: incorrect installed drivers, failure of the sound card or speakers. It’s not difficult to check these elements for functionality, and installing the driver is quite simple, but first you need to remove old version and only then install a new one. There are also cases where sound effects are played, but problems arise with a specific program or game. You should not blame the equipment, as the cause may be incompatibility of equipment or local settings applications.
Audio output device not installed: Windows 7
The most important thing you need to do is scan your computer for viruses. This is especially true in cases where the problem arises suddenly. That is, everything was working, but suddenly it stopped. You can use any reliable antivirus program, and then try to restart the computer and check for sound.
If this does not help, then move on to the next step: we need to check the drivers, or more precisely, the correctness of their installation and the availability of more recent versions. To do this, go to the Control Panel and find the “Sound Devices” tab there. Check to see if the driver is installed, and if necessary, update it through the official website of the developer. Let's not get ahead of ourselves and figure out how to properly connect an audio device.
Connecting speakers and headphones
Nowadays, most computers contain a built-in sound card. An exception may be system unit or a laptop that you assembled yourself and forgot about this part. Often has several 3.5 mm connectors, usually green, blue and orange jacks. For everything to work, you need to insert the plugs into the corresponding holes of the same color. That is, the green plug is for the green socket, etc. The pink connector is used to connect a microphone. The green one is for playing sound from the speakers, so the first thing you should pay attention to is whether it's connected. If the system writes: “The audio output device is not installed,” then try to reconnect all the wires and restart the computer. Sometimes the cause may be a break or malfunction of the socket, in which case you need to either go to a specialist or change the cable.
Audio output device not installed: what to do or how to solve the problem
Now let's move on to the most important part - installing drivers. By the way, if there is no sound only in online games, then most likely the problem is in your antivirus, which blocks passing network packets. It is enough to disable it during the gameplay, and everything will fall into place.
To install the driver you need to find installation disk, if there is one, of course. In some cases, the necessary software is located along with it, please note this. If there is no disk, then you can try to use the Internet, this method is also quite simple.
Go to "Device Manager" and find yours there. If there is something wrong with the drivers, then next to you you will see a yellow triangle with exclamation point inside. If there is no board at all, then reconnect it.
Driver installation: part 2
When sound card appears, click on it, select “Driver” and then “Update”. If you have a high-speed Internet connection, the process will begin automatically.
If at the end you receive an error about a failed update, it is recommended to first select the “Roll Back” function. This will provide you with an initial version that can be updated to the latest version. Restart your computer and enjoy the results.
If all else fails, then it’s best to use. To do this, go to “Start”, select “Programs”, then “Utilities”. Here you will need to select a checkpoint when everything was still working (date, time) and restore the operating system. Usually, this method helps almost everyone, but if you are not one of them, then reinstall the OS - this should solve the problem with a 99.9% probability.
How else can you solve the problem?
There are special programs that allow you to restore damaged system files. Including those responsible for correct sound reproduction. One such utility is ezrecover. The program will do everything itself, after which it will require a restart of the computer.
There is one more good method, allowing you to quickly download required driver for the Realtek sound device. It consists in the fact that the card ID is copied in the device manager, using which the program downloads everything it needs from the official website. You are guaranteed to receive the necessary driver, which you only need to install. The method is suitable for those who use the Vista or Windows 7 operating system.
A few important points
There is nothing difficult about installing the audio output device yourself. You can find it for free online latest versions drivers, and the rest is a matter of time. But I would like to draw your attention to the fact that if the sound card is not displayed in the device manager, then it is likely that it has burned out. It can be tested on another computer or using special software.
The card can be disabled in the BIOS, you should not forget about this. If you do not understand BIOS, then it is better to call a specialist who will do everything in a few minutes. This is due to the fact that it contains many system parameters, temperature conditions, equipment, etc. If you do something wrong, your computer or laptop may no longer turn on, and this will result in more expensive repairs.
Conclusion
In some cases, it makes no sense to go too deep into the problem, since the solution lies on the surface. For example, poor contact, broken socket, etc. In such cases, damage can be found visually, but if this cannot be done, then use the methods described above.
If the audio output device is not installed, what should I do? We have already discussed Windows 7 above. In addition, do not forget to install old ones before installing new ones, since without this one simple step you won't succeed. Take advantage DriverPack program: The utility automatically searches for outdated components and downloads updates for them.
That's all that can help you in finding a solution to this problem. Don’t forget to update your antivirus version, because it will help you avoid damaging not only the sound card components, but also the operating system as a whole.
Greetings, friends! In this article, you will learn why the audio output device is not installed, what to do about this problem, how to solve it, etc. More than once I had to deal with a situation where the sound on the PC disappeared. In this regard, in the operating room Windows system Vista and xp, a message often appeared stating that the output audio device was not found, in other words, the system simply did not see the speakers or headphones, but they were there. Without thinking twice, I began to look for a solution and solved the problem. Want to know how? Read the article further.
The most common reasons for no sound
- First thing make sure it's working properly speakers or headphones. Check the wires for integrity and correct connection (whether the correct socket is used for connection).
- No sound in online game may be a consequence blocking the corresponding packets by the firewall.
- Incorrect operation sound drivers or other software.
The first two points are understood; to solve them, check the audio device for functionality or configure the firewall in an online game. But installing or reinstalling the driver requires attention.
Installing or reinstalling the sound driver
The driver can be installed from the official licensed disk supplied with your computer or update via the Internet.
And you can do it like this:
Since the device is not working correctly, the system will most likely mark it in yellow with an exclamation mark. If you do not find this in the list, then connect the device again and check for serviceability.
Select the " Driver" and click on the button " Update» 
If the operation fails in automatic mode, then use the “Rollback” function. Last action will return working version drivers.
And so, all the points have been made, but the problem is still not solved, and the PC asks to install an audio device. Then you need to restore the system using the " Start" Further " All programs > Standard > Service" In this section, select a starting point when the speakers and headphones were working normally and run a system restore. 
If this doesn't help, then things are really bad, most likely the problem lies even deeper than I thought, and the system files susceptible to virus attack.
Music lovers, movie buffs, and even those PC users who are simply accustomed to the background sounds of their beloved Windows 7 periodically encounter problems, if not with sound, then with connecting an audio device. It seems like you’ve been working for a month or two or a year, and there’s at least some hint of possible problem. And then suddenly, darling, clap operating system presents a surprise in the form of a message that there is no audio output device installed on the computer. No answer to you, no greetings to you. The sound disappeared like a rabbit in a magician's hat.
Of course, the easiest way out of the situation is to say goodbye to Windows 7. But is this decision worth calling the right one? Not at all. In fact, troubleshooting an audio device problem in Windows 7 is quite simple. However, it is extremely important to correctly identify the cause of the problem. How to do it? Let's find out!
Causes of sound problems
On computers running Windows 7, a message about problems with the audio output device may appear for several reasons:
Thus, the problem with no sound in Windows 7, accompanied by the appearance of the error “no audio output device is installed on the computer” on the desktop, can be caused by various factors. It is from them that we will have to dance in order to eliminate such a problem.
Method #1: Checking the audio device
The first place to start debugging sound in Windows 7 is to check the sound device connected to the computer. First, you need to make sure that the speakers/headphones/microphone are connected to the PC correctly. In this case, several faults may be detected:
It is quite easy to detect these problems, you just have to take a close look at the details of connecting the output audio device to the PC. Note that in most cases, after reconnecting the device correctly, the problem resolves itself.
However, if the error is not resolved by such actions, in order to rule out other options for a problem with sound on a computer with Windows 7, you need to check the equipment by connecting it to another laptop or PC. There are two options for the development of events:
- the error message appears again on someone else's computer: we solve the problem by replacing the sound device, because the reason lies precisely in it;
- The problem is resolved: we debug using the methods described below.
Method No. 2: Analyzing your computer for viruses
It's no secret that after a virus attack, more than half of all computer problems occur, including those related to the provision of sound effects. In this case, if Windows 7, after another “trip” to the Internet or installing dubious software, does not recognize the output audio device connected to the computer, you should try checking the system for viruses. It is very likely that there is a Trojan lurking somewhere out there, slowly killing your favorite operating system from the inside.
One way or another, if it is determined that this is the cause of the problem, after performing a complete Windows checks 7 for viruses and restarting the computer, the problem should be resolved. Otherwise you will have to move on.
Method No. 3: Disabling the antivirus program
Quite often in Windows 7, the connection between the computer and the audio output device may not be established also as a result of this equipment being blocked by an antivirus program. From a theoretical point of view, everything is simple: the antivirus simply did not like the software inside the sound device. What should I do?
In this case, you can use this trick: before connecting the audio device, temporarily disable your antivirus program. If the sound device then starts working and sound appears on the PC, the answer will come naturally: the antivirus is to blame for the error. It is clear that the solution to the problem will be either reconfiguring the antivirus program or removing it.
Another point that fits this case is the temporary blocking of individual software components by the antivirus program. How can this be installed? In particular, this reason will be supported by the fact that the sound periodically disappears during a particular game or work in a program. The solution, in fact, will be the same as in the previous case: disabling / reconfiguring / removing the antivirus.
Method #4: Debug using the Troubleshooting Wizard
In Windows 7, you can also use the built-in Troubleshooting Wizard to fix problems with the sound device. Launching it is quite simple: click right click Click on the “Sound” icon displayed on the taskbar, and in the proposed menu select the “Troubleshoot sound” item:
As a result, the Troubleshooting Wizard will start automatically, checking both the computer and debugging problems with the output audio device:
If after performing these steps the sound still does not appear, you can select the “View” tab in the window that appears. Extra options" However, if, as a result of these settings, the connection to the audio device is still not established, you will have to move on to the next method to resolve the problem.
Method number 5: Reinstalling drivers
It is also possible to solve a problem with sound on a computer by reinstalling (updating) the audio device driver. In this case, click “Start”, go to “Control Panel” and select “Device Manager” from the menu that opens:
In the window that opens, click the “Sound, video and gaming devices” section, then find the sound device in the list that appears, right-click on it and select “Update drivers” in the new menu:
As a result, Windows 7 will prompt you to search for drivers. The easiest way, of course, is to choose automatic update:
As a result, if sound device drivers are available for download, after searching, the update will be installed automatically.
If this does not happen, you can try downloading them from the website of the PC manufacturer or audio equipment supplier (for example, Realtek or Creative Audigy). After this is done, return to the device manager, click “Update driver”, select “Search for drivers...”, and then select “Select driver from the list...”:
After that, click “Have from disk”, specify access to the driver file and click “Next”:
As a result, the update will be installed automatically.
Method #6: System Restore
If none of the methods suggested above could solve the problem, the only thing left is. You can do it like this:
In principle, after restoring the system, the error with determining the output audio device on a computer with Windows 7 should disappear. As you can see, everything is quite simple!