Your driver is missing. Go back to Step 2. If you have an AMD or Nvidia graphics card, the HDMI audio driver is separate from your motherboard audio driver.
Don’t panic. Your sound card isn’t dead. You just need the right audio driver. install audio driver windows 7
Tech Retrospective Reading time: 4 minutes Your driver is missing
Open the Realtek manager > Default Format > change from "24-bit 192kHz" down to "24-bit 48kHz" (Studio Quality). Older Windows 7 chips struggle with high sample rates. A Word of Caution Windows 7 is no longer secure for everyday internet browsing. If this is your main PC, consider using this audio fix to transfer your files to an external drive before upgrading to Windows 10 or Linux. However, for offline music production, legacy gaming, or running old hardware—enjoy your resurrected sound. Don’t panic
