SOLVED Mac. Book Pro No Sound in Windows 7. This guide is useful if you have the following problem. You are running Vista or Windows 7 on a Macbook using bootcamp. It can be unibody Macbook Pro 1. Macbook Pro 1. 5 or any other screen size. You have no audio sound. In macbook pro, you may also see a red light in your audio jack. This might also be helpful if your are having a very low sound volume. To Fix Simply follow the steps below. Step 1 Download the Macbook Pro Cirrus Logic CS4. A Driver from our server. Again, do not worry if you are running Windows 7 or Vista. As a request, please do not hotlink this file anywhere else or our server will automatically remove the file from server. UPDATE For newer Macbooks, you might need a newer driver which is availble here. Incase the above download  link does not work, google Cirrus. Audio. 1. 0. 6. 1. Cirrus Logic Drivers Windows 7 Imac' title='Cirrus Logic Drivers Windows 7 Imac' />We found another working mirror here. Step 2 Extract the right type of Driver depending on your windows XP 7 3. Step. 3 This step is only for Windows 7 not Vista. Right Click on exe file of driver. Select Properties Compatibility  Check run in compatibility as shown below. Select Windows Vista from drop down menu and Click OKStep 4 Double click the driver and install. Run your favourite sound track because your sound is now working. You can also play the video below to test your sound. Advanced Kv Checker. Macbook-Pro-No-sound-550x385.png' alt='Cirrus Logic Drivers Windows 7 Imac G5' title='Cirrus Logic Drivers Windows 7 Imac G5' />Cirrus Logic Drivers Windows 7 Imac DealsApple Footer This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a. Dear Sirs, I bought a iMac 27. Sometimes, I have to work in windows 7 64 bit. I would like to update the driver for Cirrus Logic CS4206A. Are you using Boot Camp for your Win 7 installation If so, you may need to wait for Apple to publish the next version of Boot Camp which addresses Windows.