Why is the sound of my computer only in and not out?

If the computer has no sound, see if it is a software failure or a hardware failure, and then prescribe the right treatment for the problem. 1. Check whether the sound card, cable, speaker and other devices are connected normally. If you have a virus, you should run antivirus software for full antivirus.

2. Open the control panel--- Add new hardware--- Next, after the search is completed, click "No, I haven't added this hardware", click Next. In the dialog box that appears, check Click Done, Shut down my computer, Restart to add new hardware. Note that this refers to shutting down and then starting, not restarting.

In general, the problem can be resolved after rebooting. 3. Right-click "My Computer" --Properties--Hardware"--Device Manager", and open "Sound, ** and Game Controller" Is there any problem, that is, see if there is a yellow one in front? If so, uninstall it, then put it into the CD drive and reinstall the drivers for this device.

4. If the "Device Manager" - Sound, ** and Game Controller" is no sound card hardware, then you have to find your sound card, including the integrated sound card, the model must be accurate, after confirming that the sound card is found, then put it into the system drive disk, install the sound card driver. 5. When there is sound but no small speaker, open the control panel --- the sound and** the volume --- the device, and put the check mark before "put the volume icon into the taskbar", and there will be a small speaker in the taskbar after restarting. 6. When there is no sound and no speaker, open the control panel--- add and remove programs--- add and delete Windows components, put in the CD drive, put the check mark in front of "Accessories and Tools", click "Next", the system will prompt you to install new hardware, and follow the prompts to install.

7. If you can't solve the problem, you have to reinstall the system and drivers, and all problems will be solved, but the premise is that all kinds of hardware are in good condition and there is no conflict in the software. 8. When the sound card driver is installed, there is a prompt of "AC chip cannot be found", it may be computer poisoning, or the sound card is plug and play loose, resulting in poor contact, or it may be due to illegal operation and mistakenly deleted the sound card driver, or internal software conflict. This has to be addressed step by step for different causes.

9. You can gently pat the shell of the computer body, the laptop can be slightly larger than the usual force when covering the lid, so that some loose parts can be restored, and then reboot after shutting down for a period of time, sometimes the sound problem will be restored When buying a computer, the manufacturer will give you a motherboard drive disk, find it, plug it into the computer, read the disk, find the sound card driver, and the installation should be solved. If you don't have a disk, use the optimization master to check it.,The name of the sound card will be displayed.,Pick up the relevant drivers on the Internet.,You can install it.。

Check if the volume control is muted, and if it's normal, take a look at the speaker again, and then the sound card will be there!!

See if it's muted.

Poisoned? Or the sound card is not installed.

Go and reinstall the sound card driver, generally no sound is because of the driver problem, if you install the driver and there is no sound, it means that your speaker is broken.