There is no sound on the computer, yesterday the computer was still fine, and today as soon as I tur

1. If there is no sound on the computer, please check whether the sound card, cable, speaker and other equipment are connected normally; Run anti-virus software for anti-virus;

2. Right-click "My Computer" -- Properties -- Hardware -- Device Manager, and open "Sound, ** and Game Controller" if there is any problem, that is, see if there is a yellow one in front of you.

4. When there is no sound and no speaker, open the control panel--- Add and remove programs--- add and delete Windows components, put a check mark in front of "Accessories and Tools", click "Next", and then, shut down and restart, the system will prompt you to install new hardware, follow the prompts to install;

5. Uninstall the sound card driver, reinstall or upgrade the audio driver, and see if the driver is the cause of the computer no sound;

6. When the sound card driver is installed, the prompt "AC chip cannot be found" appears, it may be that the computer is poisoned, or the sound card driver has been deleted by mistake due to illegal operation, or the solution to the internal software conflict is to reinstall the system and driver.

7. Simply ignore it, wait for a period of time after shutting down and then turn it back on, sometimes the sound problem will solve itself, you may wish to try it;

8. Start - Control Panel - Sound and Audio Device - Sound, see if it is set to silent, and then select Windows Default;

9. Click Start Run, enter regedit, press enter, this opens the registry, click a few hkey-current-user, click on the controlpanel item, and then click the beep in the sound under it to change its value from no to yes restart, is it to hear the long-lost power on and off sound again;

10. Delete the original account, create a new account, so that there is a sound on and off, it may be a problem caused by an error in the user profile, you can first open the guest user guest, try to see if there is a switch sound, if there is any, you can use the above method, first to create an administrator account, and then click on your account with the problem, and then press the prompt to delete, in the process of deletion it will also prompt whether to keep the files of the original account, When deleting it, it's a good idea to back up your favorites, as well as the folders created by the installer in the start menu, and then copy them back when you're done.

The driver went wrong, so reinstall it.

Well, there are many reasons for this.

First of all, you see if you have banned the sound;

If not, reinstall the driver;

If it doesn't work, it should be a problem with the wiring, such as poor jack contact and broken speakers.

Let's try someone else's stereo.

First, first confirm that the hardware is fine. If there is nothing wrong with the speaker, there is no problem with the sound card, and if you have tested it on other machines and it is indeed good, then the verdict can continue to look down.

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 Juhuai 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.

Clean the computer and reinstall it.

Thread.. This is a loose memory. General common sense that there is no obvious boot. Just unplug the memory and plug it back in.

What about restarting? Or change the speaker to headphones and test it.

If you reinstall the driver to try or reinstall the system, if it still doesn't work, it may be a problem with the speaker or motherboard, go to the after-sales service, you can't guarantee that there will never be a problem with this notebook, and you can't say that there will be an omen before the problem, just like people don't know how to get sick.

Driver issues.

Installed it well.