Minor Description
The log shows something like this for every device instance:
(base/services/umpnpmgr/umpnpmgr.c:3057) Installing: ACPI\PNP0C0F\0
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(ntoskrnl/io/pnpmgr/plugplay.c:709) A new driver will be loaded for 'ACPI\PNP0C0F\0' (no FDO above)
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(win32ss/gdi/ntgdi/gdiobj.c:1169) GreDeleteObject: Trying to delete invalid object 130500A8
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(base/services/umpnpmgr/umpnpmgr.c:3168) InstallDevice failed for DeviceInstance 'ACPI\PNP0C0F\0'
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The "a new driver will be loaded" message clearly indicates that device installation was successful.
However InstallDevice always fails – because it checks the process exit code from rundll32.exe (which always returns 0).