Why does the computer not sound after reloading the system?

Fault phenomenon: Today's computer to a friend of the system after the computer has no sound, not installed before the computer has a voice.

Troubleshooting: The initial analysis is the computer reinstall system is not installed after the sound card driver, causing the computer no sound.

First, you need to check the sound card driver is not installed.

Check steps: Right-click My Computer----Properties---Hardware----Device Manager, expand Sound, video, and game controllers, see if there is a yellow "?" on the front, there is a missing sound card driver, no, the sound card driver is not working properly, right-click the sound card, select "Uninstall" to delete it. (Image below)

Second, the computer does not sound how to know the sound card model?

1, with Everest Ultimate (hardware information detection) software detection. Download Address http://www.crsky.com/soft/5904.html

Open Software Select Multi-coal---PCI/PNP audio----device description (image below)

You can also open the DirectX diagnostic tools-sound from the start-run-input dxdiag, and look for the sound card driver from the Open interface. (Image below)

Professional View method: Open the computer cover, see the PCI slot near the chip, commonly used have acl,ad and marked with models, such as AD1888, ALC650 and the like.

Third, the computer does not sound how to install the sound card driver?

1, put the driver CD into the CD drive, right-click on the "sound, video and game controller" option, select "Update Driver", open the "Hardware Update Wizard", select "Yes, this time only"---"Next"---"Automatically Install software"-"Next", The system automatically searches for and installs the sound card drivers in the disc. If the display fails to install hardware, see next

2, download Jinshan installed Wizard A key to help you solve.

Step one: After installing the Mount Kingsoft Wizard, click on the "Start Now" button on the right side of the drive.

The second step: Open the "Install the Driver" interface, Jinshan installed Wizard for you to automatically detect the driver is not installed, click "Install", also detects the damaged hardware drive device, click "Repair" to ensure the normal use of hardware equipment;

PS: If your computer appears on the computer does not sound, in part because the virus destroyed the system files Dsound.dll, many anti-virus software most just kill, do not repair the system, so the computer will appear no sound situation. You can use the free anti-virus software, Jinshan poison PA to complete the system repair.