Search notes:

System.Management (namespace)

Microsoft prefers the Microsoft.Management.Infrastructure namespace over System.Management:

System.Management was the original .NET namespace used to access WMI; however, the APIs in this namespace generally are slower and do not scale as well relative to their more modern Microsoft.Management.Infrastructure counterparts.
https://docs.microsoft.com/en-us/windows/win32/wmisdk/retrieving-a-class[Microsoft documentation

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