Hi,
In the Console, Authoring and Monitors. Here you can search for monitors. If you know which OS you search for you can 'scope' - remember to save overrides in a new management pack, and not the default management pack.
Another way is to download the "Windows Server Operating System Management Pack Guide.docx" - here you can find lots of information about the Windows OS Management Pack
System Center Management Pack for Windows Server Operating System
https://www.microsoft.com/en-us/download/details.aspx?id=9296

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