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
 

DolbyAPO {Audio Processing Object} 3.30901.916.0 x64 driver (12/10/2025) from MS Update
catalog.s.download.windowsupdate.com/d/m...f6f7f7f116aba53f.cab

DolbyAPO {Audio Processing Object} 3.30900.915.0 x64 driver (12/05/2025) from MS Update {slightly older version}
catalog.s.download.windowsupdate.com/d/m...b93d9919149c4ff6.cab

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


Dolby HSA {SoftwareComponent} 3.30900.900.0 x64 driver (12/05/2025) from MS Update
catalog.s.download.windowsupdate.com/c/m...29a1f7112fc517f6.cab

note: this Dolby HSA driver requires recent Win10 versions & Win11 24H2

DolbyAPO {Audio Processing Object} 3.30901.918.0 Win11 x64 driver (12/18/2025) from MS Update {for Win11 only; Win10 not supported}
catalog.s.download.windowsupdate.com/c/m...964af4b1081f500e.cab