NTSTATUS __stdcall RtlSetPortableOperatingSystem(UINT8 IsPortableOperatingSystem){
UINT64 ValueLength;
_BOOL4 ValueData;
LODWORD(ValueLength) = 4;
ValueData = IsPortableOperatingSystem != 0;
return RtlWriteRegistryValue(2ui64, 0i64, L"PortableOperatingSystem", 4ui64, &ValueData, ValueLength);
}