Added note re: EOL'd Windows versions

Author: mattpennathe3rd

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> Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 have reached end of life and are only supported when running in Azure virtual machines. To use these versions of Windows with Exchange Online PowerShell V2, you must 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**: