What about the computer without sound?

  First, the computer sounds like a simple sound, in fact, sometimes the problem is more complex, not only related to hardware problems and software issues. There is also a sudden crash caused the sound card does not sound, small speakers disappear phenomenon is also more common. Therefore, the first to identify the cause, whether it is a software failure or hardware failure, and then to solve the problem, properly resolved. Do not have the reason is not clear, the disorderly ramming, can not make the system paralyzed, the trouble is big.  
 
    1, check the sound card, connectors, and speakers and other devices are connected properly. If it is a virus, you should run antivirus software for a full antivirus.
 
    2, open Control Panel----Add New hardware----Next, after the search is complete, click "No, I have not added this hardware", click Next. In the dialog box that appears, select "Click Finish, turn off no computer, reboot to add new hardware." Note that this is the shutdown and then boot, not reboot. In general, the problem can be resolved after rebooting.   

    3, right-click My Computer----Properties---Hardware----Device Manager, turn on the sound, video and game controllers are there any problems, that is, see if there is a yellow "? ”。 If so, uninstall it first, then put it in the CD drive and reinstall the driver for this device.   

    4, if the Device Manager----"sound, video and game controllers" is no sound card hardware, it has to find your sound card, including integrated sound card, model must be accurate, after the confirmation of the sound card, Then put in the system drive disk and install the sound card driver.   

    5, when there is a sound but no small horn, do not panic, as long as the control panel----sound and video device----volume, in the "Put the volume icon into the taskbar" before the check mark, There's a little horn in the taskbar again after reboot.
  
    6, no sound and no small speakers, open the Control Panel----Add and Remove Programs----Add Delete Windows components, put the CD drive disk, in the "accessories and tools" Before the check, click " Next, you will be prompted to install new hardware and follow the prompts to install it.    3lian.com

  &nbSp 7, if the above steps can not solve the problem, it has to reinstall the system and drivers, all problems will be resolved, but the prerequisite is a variety of hardware intact, software there is no conflict.   

    8, when installing the sound card driver "can't find the AC chip" hint, there may be computer poisoning, or the sound card Plug and Play loose, resulting in poor contact, It may also be due to illegal operation mistakenly deleted the sound card driver, or internal software conflict. This is a step-by-step solution for different reasons.
 
    9, simply ignore, you can gently pat the computer fuselage shell, notebook computer can cover the lid when more than usual force slightly larger, so that some loose parts recovery, shutdown after waiting for a period of time and then reboot, Sometimes sound problems can be restored.