Merge pull request MicrosoftDocs#5279 from mattpennathe3rd/v-mapenn-2020-4-12-oldOSnote

Added note re: EOL'd OSes

Author: chrisda

exchange/docs-conceptual/exchange-online/exchange-online-powershell-v2/exchange-online-powershell-v2.md

@@ -82,7 +82,7 @@ You can download the EXO V2 module from the PowerShell gallery [here](https://ww
 
   - Windows Server 2008 R2 SP1<sup>*</sup>
 
-  <sup>\*</sup> For older versions of Windows, you need to install the Microsoft.NET Framework 4.5 or later and then an updated version of the Windows Management Framework: 3.0, 4.0, or 5.1 (only one). For more information, see [Installing the .NET Framework](https://go.microsoft.com/fwlink/p/?LinkId=257868), [Windows Management Framework 3.0](https://go.microsoft.com/fwlink/p/?LinkId=272757), [Windows Management Framework 4.0](https://go.microsoft.com/fwlink/p/?LinkId=391344), and [Windows Management Framework 5.1](https://aka.ms/wmf5download).
+  <sup>\*</sup> This version of windows has reached end of support, and is now only supported when running in Azure virtual machines. To use this of Windows, you need to install the Microsoft .NET Framework 4.5 or later and then an updated version of the Windows Management Framework: 3.0, 4.0, or 5.1 (only one). For more information, see [Installing the .NET Framework](https://go.microsoft.com/fwlink/p/?LinkId=257868), [Windows Management Framework 3.0](https://go.microsoft.com/fwlink/p/?LinkId=272757), [Windows Management Framework 4.0](https://go.microsoft.com/fwlink/p/?LinkId=391344), and [Windows Management Framework 5.1](https://aka.ms/wmf5download).
 
 - Windows Remote Management (WinRM) on your computer needs to allow Basic authentication (it's enabled by default). To verify that Basic authentication is enabled, run this command **in a Command Prompt**: