Dolby Audio Drivers

DolbyAPO {Audio Processing Object} 3.30810.886.0 x64 driver (7/30/2025) from MS Update
catalog.s.download.windowsupdate.com/c/m...696461194b685679.cab


note: this is the latest version to properly support Win10; later versions after this one require Win11


edit 1/20/2026
 

DolbyAPO {Audio Processing Object} 3.30811.890.1 x64 driver (9/29/2025) from MS Update
catalog.s.download.windowsupdate.com/c/m...3d875caab266c81d.cab


note: this version requires Win11; sound will not work if this version is installed under Win10


edit 1/20/2026
 

DolbyAPO {Audio Processing Object} 3.30812.892.1 x64 driver (11/14/2025) from MS Update
catalog.s.download.windowsupdate.com/d/m...02a983eee691c624.cab

DolbyAPO {Audio Processing Object} 3.30812.891.1 x64 driver (10/30/2025) from MS Update {slightly older version}
catalog.s.download.windowsupdate.com/d/m...fa9120f7e0a97b33.cab


note: these versions require Win11; sound will not work if any of these versions are installed under Win10


edit 1/10 - added link to the DolbyAPO 3.30812.891.1 driver from Microsoft
edit 2nd time 1/20 - added note that these new Dolby APO drivers require Win11