Browse to the extracted folder, select the digitalplus.inf file (matching your system's 32-bit or 64-bit architecture), and click Install anyway if prompted.
Choose > Let me pick from a list... > Have Disk . Dolby Digital Plus Audio Driver 7.3-2.2 Download
Navigate to > Advanced Options > Startup Settings > Restart . Press F7 to select "Disable driver signature enforcement". Update Driver in Device Manager: Right-click Start and select Device Manager . Expand Sound, video and game controllers . Browse to the extracted folder, select the digitalplus