No sound on windows 7. Problems with the front panel. After installing the system

Sometimes the reason can be so simple that users cannot even think about it. But it's worth starting with the obvious, so try this first:

Restart your computer. It is quite possible that some of the components of the operating system simply did not load up due to its "age" or load by other processes. This can be done by clicking on the button on the system unit or by pressing the "Restart" button in the "Start" menu.

Check your speakers whether any wires have come off, whether the switches are off, and in general, whether there are any other defects and damage. It is possible that you will need to disconnect all wires from the speakers and reconnect it all. See if the LED is on, which indicates the health of the speakers, if any.
Click the "Volume" icon (it is marked in figure 2). There you need to check if the sound is muted. A red circle means that the sound is muted for some reason. In this case, you just need to raise the volume slider up or even just click on the red circle itself. Then the system will automatically turn on the sound.

These are the simplest solutions to the problem with not working sound. All of these should be tried first. And only then apply all the methods described below.

Important! Make sure your speakers or headphones are working - check them on other devices before looking for a breakdown in your computer.

The problem is in the drivers

One of the most common causes of a problem with not working sound on a computer is driver failures. It is very easy to check if this is so in your case. To do this, you need to do the following:

Open the "Start" menu and click on "Control Panel", as shown in Figure 3.

In the search bar (in Figure 4 highlighted in green), write "Device Manager". After that, you need to open the device manager, which is located in the "System" section.
Try to play different files. Perhaps, there is no sound only when playing a certain type of files. In this case, most likely, there is a problem with the codecs. How to solve it will be described below.

Important! You need to open the device manager in exactly the same way as described above. As you can see, there are a large number of dispatchers in Windows 7 and they all look the same, but the functions in some of them may differ, albeit not much.

After that, in the opened window of the "Device Manager" we need, we need to see if there are any exclamation marks in the list. We are especially interested in the section entitled "Sound, video and game devices". Exclamation marks indicate that the drivers are too outdated, work incorrectly, or, to put it simply, "flew", that is, disappeared from the system due to its failure.

Even if there are no exclamation marks, it would still be useful to update the drivers. It is quite possible that some of them started to work incorrectly, just the system “does not know anything about it” yet.

Driver update process

First of all, you need to update the drivers for those devices in the "Sound, video and game devices" section, the name of which contains the words "Audio" or Audio. However, updating drivers for all other devices does not hurt either. The update process looks like this:

Should click right click mouse on a specific device and select "Update drivers ..." in the drop-down list of options.

Figure: No. 5. The item "Update drivers ..." in the drop-down list when clicking on the audio device

In the window that opens, select the item "Automatic search for updated drivers". Then the system will start searching for new driver versions on the Internet, including on the developer's website previous versions... it the best option in terms of ease of use.

After the end of the search, a list of available driver update options will appear in the same window. You should click on one of them and continue the installation by clicking the "Next" button. Perhaps there will be a message stating that this device does not need to update drivers - then nothing needs to be done.

If the drivers require updating, but the auto search on the Internet did not find suitable ones, you need to go to the developer's website, find there latest driver for the desired device, download and install manually. To do this, select the second option in the window shown in Figure 6.

Codec problem

There is one easy way to determine if your computer has a codec problem. It consists in playing different files and checking whether all types of files are played or only some. But this problem can manifest itself in another way - completely mute the sound on the computer. To install the full set of codecs, it is best to use the option that the KM Player development team offers. It is called K-Lite Codec Pack and this is a complete set of codecs required for normal computer operation. Interestingly, installing codecs is not as easy a process as it might seem at first glance. Errors can occur already at the download stage. Therefore, below will be described the process of downloading and installing the K-Lite Codec Pack. It looks like this:

Codecs should only be downloaded from the official K-Lite website, other sources may contain malware.

In the "Mega" section, find the Download Mega button. Only this package contains a complete set of codecs. When installing other packages, some may not be enough.

On the next page there will be two links for downloading the K-Lite Codec Pack - Mirror 1 and Mirror 2. Users often write at technical forums that the second link is better for Russia and other countries of the former USSR. After downloading, you should run the file to start installing the codec pack.

Important! If you already have an old codec pack installed on your computer, at this stage a pop-up window will appear on the screen - the system will offer to remove it. Agree, you have already downloaded new version.

Next, the installation window will open. There will be installation options, among which you need to select Advanced, as shown in Figure 9, and click the "Next\u003e" button at the bottom of the page.

In the next window, you should also click the Next\u003e button, and after that a window will appear in which you can already select the installation components, that is, codecs. It is best to choose Profile 9, which contains the most of them. When finished, click Next\u003e again.

In the next few pop-ups, you just need to click Next\u003e, we are not particularly interested in them. This should be done until the file extension selection window appears, shown in Figure 11. We recommend that you select Select all video and Select all audio so that any audio and video files can be opened by the KM Player media player.

Now we press "Next\u003e" several times again and wait for the end of the installation, which will be indicated by the "Finish" button.

The above solutions for a sound problem can help resolve several of the most common causes of problems. In the video below, you can see several more options for solving the problem.

The reasons for the lack of sound in Windows 7 are sometimes simple, and it is not uncommon to find a problem for a long time. Very often, when asking a question, users give incomplete information about the problem, for example, they do not say that they tried to update the day before sound driver or tried to connect other speakers to your computer or made changes to the Sound tab settings in Control Panel.

Or maybe you installed some plug-in on your laptop to improve the sound quality of the players installed in your system and after that you have lost sound on Windows 7.

But no matter what happens to you friends, do not despair, there is a solution to your problem and, as usual, we will start with the simplest.

Note: at the end of the article, as an option, there is a way to work with a little-known novice user -\u003e Universal Diagnostic Tool for Windows 7, which can also automatically find and fix various problems related not only to the lack of sound.

Even very experienced users have situations when for some reason they disconnected from system unit speakers and then forget about it. Check if everything is securely connected. The speaker output is marked in green.

You can check the soundness of the speakers by connecting headphones to the sound output, if there is sound, then the speakers are faulty. Also, if there is no sound in Windows 7, you need to go to the device manager and pay attention to whether you have opposite the Sound devices item exclamation mark in a yellow circle. Start-\u003e Control Panel-\u003e click right mouse on "Computer" and select Properties from the menu, then Device Manager. If the yellow circle is present, it means that the sound driver just flew off and you need to reinstall it.

Note: In order not to puzzle yourself over which of the two hundred programs and games you installed yesterday led to problems with sound, you can use a simple System recovery , fortunately in Windows 7, it is usually enabled for everyone and roll back with recovery points a little back.

Just yesterday, my friends asked me to fix the problem of no sound on their computer. The day before, they downloaded two multimedia players on the Internet and installed for some reason, after which they lost sound. First of all, I looked at the speaker volume indicator in the Taskbar to see if it was turned down completely, everything turned out to be fine.

I also clicked on the Speakers button with the right mouse and selected Playback Devices from the menu,

there was a green checkmark on the Speakers item as it should be.

Strange, but there was also a working sound device in the device manager.

Everything indicated that everything was fine with the sound. I brought headphones with me and connected them to the audio output located on the back of the system unit and made sure that there is actually no sound, which means that the speakers are also working properly.
First of all, in this case, the sound device driver may be damaged or not working correctly, which means you need to go to the device manager and try to update the driver, which will not always help, in which case you need to completely remove all sound devices from the system.

After the performed operation in operating system my friends got a sound. By the way, in this case, you can also use System Restore.
Another time there was a different problem, the person installed on his windows computer 7, everything would be fine, but there was no sound, there was eloquent information in the device manager.

In such cases, you need a disk with drivers for motherboardthat came with your computer upon purchase, on this disk you need to see if the drivers available on it are suitable for Windows 7. If the drivers on the disk are intended for Windows XP, it is naturally not worth installing them, you need to go online and download the native drivers for your sound card on her official website.

How to do this with us in detail and step by step is written in the article How to find and install a driver on a device correctly ... Often not only the search for drivers, but also the correct determination of the device name is a problem for a novice user, so I still advise you to follow our link and read the article. If, nevertheless, you do not find a driver for Windows 7, but you have an installation package of drivers for Windows XP, you can try to install it in the Compatibility troubleshooting mode, but I tell you friends, this is not quite the best option.

After reinstalling the Windows operating system or after reboot suddenly

Why is there no sound in Windows - reasons:

1. There is no sound because it is turned off by hardware.
programmatically.
3. There is no sound because driver not installed sound card.
4. There is no sound because the sound card is out of order.
5. No sound because there are no corresponding codecs in Windows.

Let's consider each of the reasons in more detail:

1. No soundbecause it's off hardware.

First of all, we check the connected audio equipment - turn it off and on again, try to change the volume. If you have headphones from a player or phone with standard mini-jack - try to connect them to the computer and check if there is sound. This will check the health of your audio equipment. Also, try to connect the headphones to other connectors of the sound card and check if there is any sound - perhaps the connectors are simply confused.

2. There is no sound because it is off programmatically.

This also happens, while the user may have absolutely nothing to do with it - simple glitch ... Next to the clock in the system tray, we are looking for an icon in the form of a speaker:

We check that it is not marked with a red circle - click on it and try to click on the speaker icon by turning off and turning on the sound programmatically. Also pay attention to mixer slider... It should not be in the lowest position.

You can also go to Control Panel and find subsection Sound:

Pay attention to the condition of the item Speaker - should be - Ready... Also pay attention to default device - there should be selected your sound card and check the box.