How do I reinstall my audio driver Mac?

  1. Start your Mac and boot into Windows.
  2. Open Internet Explorer and go to Apple Support.
  3. Click Downloads.
  4. Scroll until you find the latest audio drivers for the Mac system you’re running.
  5. Click Download.
  6. Follow the on screen instructions to download and install the latest audio drivers for your Mac.
  7. Reboot your Mac.

For More Information Please Refer:
https://support.microsoft.com/en-us/help/2622620/troubleshoot-sound-problems-on-windows-with-boot-camp
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