1. Uninstall Realtek sound card driver and dolby pro logic plug-in (all sound card drivers are uninstalled) so that dolby installed next can receive the sound card completely.

2. Run gpedit.msc in turn to enter-management template-system-equipment installation-equipment installation restriction, and come to the following page.

3. Next, select the arrow selection (device settings that are not described in other policy settings are prohibited from being installed), and click the left arrow policy settings-set to enable and confirm the exit-this is to ensure that the policy group has been started.

4. Next, press the win key to bring up the menu, and then press and hold shift (don't release the shift key) to point the power supply-restart-troubleshooting-start the settings-wait for the restart to enter the blue page, and select 7- disable the forced signature of the driver.

5. Finally, enter the policy group page again, select the arrow to select (device settings not described in other policy settings are prohibited), and click the left arrow policy settings-set to disable and confirm the exit-in order to ensure that the policy group has been closed.

6. Check whether the sound card driver is uninstalled. Because win 10 has a default sound card driver mechanism, the sound card driver automatically installed by win 10 is now uninstalled.

7. Now install Dolby pro logic. Run the installation software of Dolby Home Theater, let the software extract itself to C:\DRIVERS\WIN\DOLBY, remove the checkmark when the following interface appears, and then click Finish.

8. Run C:\DRIVERS\WIN\DOLBY \x64(32-bit x86)\DTPC.msi (regardless of other msi) and select "DHT (Release)" as the version.

9. Run C:\DRIVERS\WIN\DOLBY \x64(32-bit x86)\Drivers, and select "DHT(Release)" as the version to complete the installation.

10. Restart to see the effect.