From fxconfigurator2 and puresoftapps Dolby apps+preset.
uninstall all audio enhancers
use all driver cleaning tools, which i'am sharing
Then reboot
Install fx configurator
Clear Dolby Registries.reg - 1, & Clear Dolby Registries.reg - 2, this may solve Dolby Driver Problems , Reboot Windows
Delete all registry key related to DolbyLaboratories, Reboot Windows
Install FX Configurator, during installation Select Dolby UWP - select Dolby DAX API Service 2.1003.251.0 & uncheck all other audio enhancers
After FX Configurator installation, open FX Configurator, load 'Dolby UWP Gaming.ini' & import registry 'Dolby UWP DSP.reg', click on 'Apply' & 'Restart Audio Services'
Now install Dolby Atmos for Gaming MS Windows Store version, Right click Add-AppxPackage.ps1, Run with PowerShell
After installing Dolby Atmos for Gaming, Stop 'Dolby DAX API Service' from Task Manager/Services
Go to - C:\Windows\System32\dolbyaposvc, & delete all .xml files, do not delete any dolby related dll files
Now copy Default.xml to - C:\Windows\System32\dolbyaposvc
From Task Manager/Services, Start 'Dolby DAX API Service'
Run Dolby Atmos for Gaming, it will run without any error