https://www.tweakhound.com/2021/03/30/oo-shutup10-1-8-1420/
Here are the registry changes O&O Shutup10 version 1.8.1420 made when turning on “Disable Telemetry”
Changed from 0x00000001 = Enabled/Normal to 0x00000000 = Disabled/Ignore
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\WMI\Autologger\AutoLogger-Diagtrack-Listener]
“Start”=dword:00000000
Changed from 0x00000002 = Automatic to 0x00000004 = Disabled
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\DiagTrack]
“Start”=dword:00000004
Changed from 0x00000003 = Manual to 0x00000004 = Disabled
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\dmwappushservice]
“Start”=dword:00000004
FWIW ~ my reg keys with "Disable telemetry" On green
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\WMI\Autologger\AutoLogger-Diagtrack-Listener]
“Start”=dword:00000001 (1)
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\DiagTrack]
“Start”=dword:00000004 (4)
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\dmwappushservice]
“Start”=dword:00000003 (3)