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First of all, computer mute seems simple, in fact, sometimes the problem is more complicated, involving both hardware and software. So we should first find out the reason, see if there is something wrong with the software or hardware, and then prescribe the right medicine for the problem. Never tamper with the system for unknown reasons, otherwise it will paralyze the system and cause big trouble.

1, check whether the sound card, cables, speakers and other equipment are connected normally; Run antivirus software for antivirus;

2. Right-click my computer-properties-hardware-device manager, and turn on the sound, video and game controller to see if there is any problem, that is, to see if there is a yellow "?" In front of it. . If so, reinstall the driver of this device to solve it;

3. When there is sound, but there is no speaker, open the control panel-Audio-Visual Equipment-Volume, and put a tick in front of "Put the volume icon in the taskbar";

4. When there is no sound or speakers, open the control panel-Add and Remove Programs-Add and Remove Windows components, check "Accessories and Tools" and click "Next". Then, shut down and restart, the system will prompt you to install new hardware, and follow the prompts.

5. Uninstall the sound card driver and reinstall or upgrade the audio driver;

6. When installing the sound card driver, the prompt "AC chip not found" appears, which may be due to computer poisoning, or illegal operation to delete the sound card driver by mistake, or internal software conflict. The solution is to reinstall the system and drivers.

7. Simply ignore it, turn it off and wait for a while before turning it on. Sometimes the sound problem will solve itself. it wont hurt you to try it