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/msdownload/update/driver/drvs/2025/09/103376ea-9b5f-4f8b-92a5-06144d80881f_42b8cab8ff7efe20b01c7cd5696461194b685679.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/msdownload/update/driver/drvs/2025/12/a82477b1-4637-4e55-bbd6-c543cbe7903c_c4d1e07db6bd19feb9afb7753d875caab266c81d.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/msdownload/update/driver/drvs/2025/12/2135aac0-a79c-4817-b069-b6ac880f0ca0_1c29cc0fe03cd094f1984e4f02a983eee691c624.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/msdownload/update/driver/drvs/2026/01/65474c3b-5d49-4191-a6cb-939e03eae542_bbb8828525b18a58b39125c5fa9120f7e0a97b33.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/msdownload/update/driver/drvs/2026/02/d18909f2-e888-4f41-a288-0a2cf512d09d_a4923c2cb7ed2dfa90a8f79ef6f7f7f116aba53f.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/msdownload/update/driver/drvs/2026/02/798eb194-60eb-454a-b176-b94c0316a610_1d537edee938bc3d58db7a56b93d9919149c4ff6.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/msdownload/update/driver/drvs/2026/02/83a89ae9-f1a3-440b-89aa-c8f7d29a5add_36886c950bc84b18bf20dfae29a1f7112fc517f6.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/msdownload/update/driver/drvs/2026/02/66a9c148-c3e6-4925-8967-2aad1b4b66e4_dfaf1bca22bd558ca6f0eb32964af4b1081f500e.cab