My Macbook is second hand. They installed windows

try to find the sound drivers for your sound card. Make sure the drivers are for Windows 7

if you dont have a motherboard disc you will have to download the drivers

http://download.cnet.com/Realtek-AC-97-Driver-Windows-Vista-Windows-7/3000-2120_4-10962344.html
Realtek AC'97 audio driver package. The package includes: driver setup program, drivers for Vista/Windows 7 32-bit and 64-bit editions.
hope this helps

http://download.cnet.com/Realtek-AC-97-Driver-Windows-Vista-Windows-7/3000-2120_4-10962344.html
Update your embedded sound from Realtek to the latest AC'97 codec.
if your computer came with a motherboard disc the sound drivers could be on it
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers or you can download the drivers

Download the driver software by

http://download.cnet.com/Realtek-High-Definition-Audio-Codec-Windows-Vista-Windows-7-32-bit/3000-2120_4-10788600.html free sound drivers

http://download.cnet.com/Realtek-AC-97-Driver-Windows-98-Me-2000-XP-2003/3000-2120_4-10238712.html
Realtek AC

if your computer came with a motherboard disc the sound drivers could be on it
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers if you dont have a motherboard disc you will have to download the drivers

http://download.cnet.com/Realtek-AC-97-Driver-Windows-Vista-Windows-7/3000-2120_4-10962344.html
Realtek AC'97 audio driver package. The package includes: driver setup program, drivers for Vista/Windows 7 32-bit and 64-bit editions.
hope this helps

http://download.cnet.com/Realtek-AC-97-Driver-Windows-Vista-Windows-7/3000-2120_4-10962344.html
Update your embedded sound from Realtek to the latest AC'97 codec.
if your computer came with a motherboard disc the sound drivers could be on it
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers or you can download the drivers

Download the driver software by

http://download.cnet.com/Realtek-High-Definition-Audio-Codec-Windows-Vista-Windows-7-32-bit/3000-2120_4-10788600.html free sound drivers

http://download.cnet.com/Realtek-AC-97-Driver-Windows-98-Me-2000-XP-2003/3000-2120_4-10238712.html
Realtek AC

Kanwa -- Must say not an easy one to find. That's a pretty old generic motherboard. That motherboard has a Realtek sound controller (Your board needs the Realtek AC'97 drivers for your particular operating system).


If you use Vista or Windows 7 you should download the Realtek AC'97 Driver for Windows Vista /
Windows 7) 6.0.1.6305.


For Windows XP download the Realtek AC97 Driver for Windows 98/Me/2000/XP/2003 A4.06.


If one of these doesn't work then remove the driver and install VIA Vinyl AC'97 Codec Combo Driver 7.0b

The link is HERE.


Good Luck


Mikeywaf

First of all is your hardware compatible with Windows 7? Check at http://www.microsoft.com/windows/compatibility/windows-7/en-us/default.aspx

If your hardware is listed ... there may be a note there.

Second, visit the realtek site and see if they have the drivers to upgrade your program to 7.

If your hardware is not supported ... you wull have to upgrade.

A reasonable answer.

Check the following you might get positive result.

http://drivers.softpedia.com/get/SOUND-CARD/REALTEK/Realtek-AC-97-Audio-Driver-for-Windows-7.shtml

http://www.realtek.com/Downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=23&Level=4&Conn=3&DownTypeID=3&GetDown=false#1

Cheers.

Reset the smc and pram of the system followed by Apple webpage. Also check the system by updating the Mad Os x latest one.issue will get solved

Actually, what you have to get is the Vista version of the High Definition Audio Codecs fom Realtek .... http://www.realtek.com.tw/downloads/downloadsCheck.aspx?Langid=1&PFid=24&Level=4&Conn=3&DownTypeID=3
Insert Leopard DVD for Boot Camp Drivers [if you know how to use torrents then download from here http://thepiratebay.org/torrent/3860505/BootCamp_2.0_(Leopard)_Windows_drivers] . Don't auto-run the installer. Navigate to the drivers folder and there you find the individual .exe files files for each driver.
Right click on the RealTek driver and select 'troubleshoot installation'. Windows will ask you several questions, but basically the gist of it is to tell Windows that 'This driver used to work OK in Vista'.
or
You need drivers of boot camp on mac osx 10.5.4 dvd.then open Drivers folder, you will see RealTekSetup.exe right click then click to troubleshoot compability. A window will apper.You'll se Program Compability click next below. Select "the program worked earlier versions of windows but won't install or run nom." and click next. Realtek Setup will start and install drivers. solution is just this. Lemme know if this solved the problem...