Why does a laptop suddenly stop making no sound?

First, first confirm that the hardware is fine. If the speaker is fine, the sound card is fine, and if you've tested it on other machines and it's really good, then you can read on.

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2. Make sure all the cables are exactly right. Then power on the speaker and turn on the volume switch.

3. Install the driver of the sound card correctly, if it is an onboard sound card, it is best to install the driver provided on the driver disk of the motherboard.

In fact, the computer does not make a sound, and many times it is because the sound card is not driven correctly. In general, after the sound card driver is installed, there will be a small speaker icon in the taskbar in the lower right corner. ）

Fourth, if you are sure that the driver is installed correctly, then take a look at the volume settings in the computer.

The specific method is to double-click the speaker icon in the taskbar, and check whether the volume is turned off to the minimum in the "Volume Control" and "Waveform" dialog box in the pop-up "Volume Control" and "Waveform".

If these two options are not available in the dialog box, click on the "Options" menu - select "Properties" - select "Volume Control" and "Waveform" in the "Show Volume Controls" and then set them correctly.

Note: Step 4 can only be set up after the driver for the sound card has been installed correctly.

It may be that the driver is not installed well If the original driver is installed, it means that there is a problem with your speaker cable, if it is not warranted, take the manufacturer to check it.

The computer volume is turned off or the sound card driver is not turned on.

2. The sound card driver is not turned on. First find the sound device through the control panel, and then click on the sound and audio device, if the pop-up interface is gray or yellow exclamation mark, then it proves that the driver is not installed or the driver is not played, **driver wizard or driver life to detect-**-install-restart.

3. Right-click "My Computer", click Manage, find the service option, double-click to enter, find the Windows Audio option to see if it is enabled, if not, turn it on and set it to automatic.

The solution to the sudden no sound from the laptop is as follows:

1. Right-click "This PC" and select "Properties".

<>3. Right-click "Properties".

4. Click "Driver", and then click "Return Driver".

5. At this time, the sound of the computer is restored.

If it is caused by computer lag, then you need to check whether it is caused by too much software.

If there is a freeze under normal conditions, then you can consider updating the sound card driver.

The problem of eliminating the driver is whether there is a problem with the laptop speakers.

The sound from time to time failures are generally related to connectors, circuit virtual soldering and other faults, elimination requires a certain amount of experience and equipment, usually can be used with a standard signal source, from the rear stage (speaker) forward, step by step input standard audio signal, at this time the computer is set to mute, if the level appears intermittent failure, then the problem is in the level, generally the solder joint will be re-welded or replaced to eliminate the fault. You don't have the conditions to go to the repair shop for help.

For sound card driver issues, in Device Manager, disable the sound card and then enable it to try.

The reason why there is no sound after using the laptop for a while is because the Windows Audio service is very fragile and sometimes turns off suddenly.

Solution: Right-click "My Computer" on the desktop and select "Manage".

To the left of the pop-up window, select "Services & Applications" – Services.

Look for an option called "Windows Audio" on the right side of the window, right-click on it, and select "Start".

A laptop, also known as a laptop, laptop or laptop in Chinese, is a small, portable personal computer that usually weighs 1-3 kg. The trend is to be smaller and lighter, but more powerful. Like Netbook, which is commonly known as netbook, the main difference from PC is that it is easy to carry, abbreviated"pc"。

Different notebook models are suitable for different people, and usually, manufacturers will divide their products into models to meet different user needs. From the perspective of use, laptops can generally be divided into 4 categories: business, fashion, multi-application, and special-purpose.

Business laptops are generally characterized by high mobility and long battery life; There are also stylish laptops for business use.

Multi-application notebook computer is a combination of powerful graphics and multi-processing power and a certain degree of mobility, the common multi-application notebook computer on the market has independent more advanced graphics card, larger screen and other characteristics; Special-purpose laptops are models that serve professionals and can be used in harsh environments such as scorching heat, severe cold, low pressure, and war, and are mostly bulky.

From the perspective of users, students use laptops mainly for education and entertainment; Enthusiast lovers not only pursue high-quality enjoyment, but also have high requirements for the complete interface of the device.

One of the reasons why the laptop has no sound after a while is that there is a service called Windows Audio that is very fragile and sometimes turns off suddenly.

When you encounter this problem, you need to check it by following the steps below:

1 Right-click on 'My Computer' on the desktop and select 'Manage'

2 To the left of the pop-up window, select 'Services & Applications' – Services

3 Then look for an option on the right side of the window called 'Windows Audio'. Right-click on it and select 'Launch'.

There are many solutions! Is it a problem with your sound card driver or laptop? You go to customer service to check it.

1, I suspect that you accidentally pressed some shortcut key when you used it, causing the sound to be gone, and the reloading drive sound will naturally come out.

2,There is a problem with the sound card driver,The installation is not correct,After a period of time, the driver does not run automatically and there is no sound,Are you using 360 or something software to turn off the sound card driver?,Pay attention to the following。

3,Now each driver wizard reinstalls the driver,Let the driver wizard install automatically,If there is still a problem,Take the computer to Lenovo customer service,There is a problem with the broken computer!!

1.There is a problem with the sound system settings of the laptop, it is recommended to set the headphones to disabled and the speakers to enable in the sound settings, such a setting does not mean that the headphones cannot be used. Instead, when the headphones are plugged into the computer, the headphones actually replace the speakers, and the connection of the speakers is automatically disconnected.

2.If this still does not solve the problem, then you should ask the repairer to check the computer, it is estimated that the connection line of the sound system is not in good contact with such a situation.