WNF contains data that is simply not exposed elsewhere. If you need to check the state of a specific Windows feature configuration before it is fully committed to the registry or file system, WNF is often where that state lives. Using this function allows you to read data that standard tools cannot see.
NtQueryWnfStateData allows a caller to associated with a specific WNF state name. Unlike waiting for a notification, this is a synchronous read operation: "Give me the current value of this state, right now." ntquerywnfstatedata ntdlldll better
NtQueryWnfStateData is the primary instrument for retrieving information from a specific WNF "State Name." Because it resides in ntdll.dll , it bypasses the standard Win32 API layer, offering a more direct (and potentially faster) path to the kernel’s state store. The function typically requires several parameters: WNF contains data that is simply not exposed elsewhere