Back in December, I showed you how to install RSAT on a Windows client. As you will have seen, the method depends on what version of Windows the client is running, which means that correctly identifying the version running is somewhat important (although trial and error does work – eventually).
I have found that the quickest and most accurate way to do this is to open the start menu, and search for winver, which will return the both the OS Build number and version:
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