A solution to the computer's no sound

First of all, the computer without sound seems simple, in fact, sometimes the problem is more complex, not only involves the hardware aspects of the software involved in the problem, we must first find out the cause, look at the software or hardware out of the fault, and then to solve the problem of the right to do not know why, the disorderly ramming, do not make the system paralyzed, the trouble is big

1, check the sound card, connectors, and speakers and other devices are connected to normal, anti-virus software to run anti-virus;

2, right click on "My Computer"----"Properties"---"Hardware"----"Device Manager", open the "sound, video and game controller" There is no problem, that is, to see if there is no yellow "" "If there is, reinstall the device driver to solve;

3, there is a sound but no small speakers, 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 speakers, open the Control Panel----Add and Remove Programs----add \ Remove Windows components, in the "accessories and tools" Before the check mark, click "Next", and then, shutdown restart, the system will be prompted to install new hardware, according to the prompts to install;

5, uninstall the sound card driver, reinstall 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 the internal software conflict solution is to reinstall the system and Driver program;

7, simply ignore, shut down after waiting for a period of time and then reboot, sometimes sound problems will be solved by yourself may try;

8. Start-Control Panel-sound and audio devices-sound, see if it's tuned into a silent, then select Windows Default;

9, click Start-Run, input regedit, enter, this opens the registry, point a few hkey-current-user, and then click on the ControlPanel items, and then hit the sound under its beep to change its value from No to Yes restart, is not again heard a long-lost switch machine voice;

10, the original account has been deleted, create a new account, so that the switch machine has a sound, may be the user profile error caused by the problem, you can first open 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, Then click on your problem account, 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.