If you still wish to try v4, proceed with caution, and always create a system restore point first. For most Windows 10 users, the official Dolby Access app is the safer, more reliable choice.
Always try official manufacturer drivers first, as they are custom-tuned for your specific hardware. How to Enable / Install Dolby Atmos on Windows 10 dolby home theater v4 download windows 10
When Windows 10 was released, Microsoft pushed a new driver architecture (Universal Audio Architecture). In many cases, Windows Update automatically installs a generic "High Definition Audio" driver. While this generic driver makes sound come out of your speakers, it strips away the proprietary Dolby enhancements because the generic driver does not contain the necessary hooks to launch the Dolby UI. If you still wish to try v4, proceed
The generic Realtek hardware supports the Dolby Digital logic; it just needs the software interface to unlock it. However, because this bypasses official OEM channels, it exists in a grey area of software licensing. How to Enable / Install Dolby Atmos on