The laptop is plugged into a headset and there's a sound.

1, check the sound card, cable, and speakers and other equipment is connected to normal; Run anti-virus software to antivirus; 2, right click on "My Computer"----"Properties"---"Hardware"----"Device Manager", open "voice, video and game controller" There is no problem, that is, see if there is no yellow "" "If there is, Reinstall the driver for this device to resolve; 3, when there is a sound but no small speaker, open the Control Panel----sound and video device----volume, in the "Put the volume icon into the taskbar" before the check mark; 4, no sound and no small horn, open the Control Panel----Add and Remove Programs----Add delete Windows components, before "accessories and Tools" Tick, click "Next", and then, shutdown restart, the system will be prompted to install new hardware, follow the prompts to install it; 5, uninstall the sound card driver, Re-install or upgrade the audio driver; 6, when the installation of sound card driver "can not find the AC chip" hint, there may be a computer poisoning, or because of illegal operation mistakenly deleted the sound card driver, or internal software conflict resolution is to reinstall the system and Driver 7, simply ignore, After shutting down for a while and then rebooting, sometimes the sound problem will be solved by yourself you can try 8, start-Control panel-sound and audio devices-sound, see if it's muted, then choose Windows Default 9, click Start-Run, enter regedit, return, This opens the registry, point a few hkey-current-user, and then click on the ControlPanel item, and then hit the sound in the beep will its value from No to Yes restart, is not again heard the switch machine Voice 10, the original account deleted, Create a new account so that the switch has a sound, may be a user profile error caused by the problem, you can open the Guest user guest, restart to try to see if there is a switch machine sound, if you can use the above method, first to create an administrator account, and then click on your account of the problem, Then press the hint can be deleted, in the process of deletion, it will also prompt whether to keep the original account of the file, in the removal of the best to back up favorites, as well as the Start menu of the installation software created folders, and then copy them to the past on it.