diff --git a/Installation-&-Setup.md b/Installation-&-Setup.md
index 64ff488..7353811 100644
--- a/Installation-&-Setup.md
+++ b/Installation-&-Setup.md
@@ -3,7 +3,7 @@ Installation
 
 * Windows:
 
-    * Requires Windows 7 or later.
+    * Requires Windows 7 or later, but note only Windows 10 is tested.
     * Download the `.msi` package of the [latest release](https://github.com/EDCD/EDMarketConnector/releases/latest).
     * Double-click on it to install.
     * Run **Elite Dangerous Market Connector** from the Start Menu or Start Screen.