I have yet to install them, but I assume that is the key to doing this right. This I found just by clicking Analyse under Realtek Sound in Driver Sweeper, which showed the proper file and it's location. They are not in the Realtek\Driver folder, they are at C:\Windows\System32 with system drivers.
I was looking for them in the wrong place. HD Audio Codec Hardware ID (You can find this in device manager, see image below)Ī more concise "how to" it seems would be just detailing where the RtkAPO.dll and RtkAPO64.dll files are.
HD Audio Controller Hardware ID (You can find this in device manager, see image below) OS (including whether it's 32-bit or 64-bit) Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.71 A1 (Alternative method): The Dolby Digital Live / DTS Interactive output setting you have set will still be in effect, even after a reboot. You can still replace the DLL and go to Control Panel > Sound, set the output format to Dolby Digital Live / DTS Interactive, and then switch back to the original DLL, Unfortunately, usually Windows PUMA (Protected User Mode Audio) will check the digital signature of the user-mode DLL and will refuse to play ("Failed to play test tone"),Įven so, PUMA will only re-verify the DLL signature after a system restart.īecause of that, and because Dolby Digital Live / DTS Interactive settings are used regardless of the DLL being loaded, Patch the kernel to permanently enable unsigned drivers.Īlternatively, here is another modification that does not require breaking the driver signature, and instead modifies one of the user-mode DLLs, Test-sign the driver and enable Test-mode.ģ. Press F8 before each boot and select "Disable driver signature enforcement".Ģ. This is an unsigned driver, you must do one of the following for the driver to load:ġ. Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.71 M1: Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.73 M1: Download Realtek HD Audio Codec Driver and replace the relevant file with the file provided:
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