Disable Exclusive Mode for All Audio Devices via PS

Finally I was able to solve that issue by creating two scripts.

1. It uses SetACL.exe to take ownership of registry key by System account and set privileges to that account:

cd ".\SetACL"
SetACL.exe -on "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture" -ot reg -actn setowner -ownr "n:NT Authority\System" -rec Yes
SetACL.exe -on "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture" -ot reg -actn ace -ace "n:NT Authority\System";p:full"

2. Change registry settings related to Exclusive Mode:

$Registry_Key = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture\*\*\"
Get-ItemProperty -path $Registry_Key -name "{b3f8fa53-0004-438e-9003-51a46e139bfc},3" | % {Set-ItemProperty -path $_.PSPath -name "{b3f8fa53-0004-438e-9003-51a46e139bfc},3" -type Dword -value 0}
$Registry_Key = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture\*\*\"
Get-ItemProperty -path $Registry_Key -name "{b3f8fa53-0004-438e-9003-51a46e139bfc},4" | % {Set-ItemProperty -path $_.PSPath -name "{b3f8fa53-0004-438e-9003-51a46e139bfc},4" -type Dword -value 0}

A created two packages in SCCM (separately for each script) and ran them through Task Sequence.

Maybe that will be helpful for someone who struggle the same task and issue 🙂

Regards

Damian