guides/user/Installation.md

@@ -73,6 +73,10 @@ website's [download](http://arachni-scanner.com/latest#osx) page.
 
 ## <a id="windows" href="#windows">Windows -- under Cygwin</a>
 
+Running Arachni under Cygwin is not encouraged and should only be used as a last
+resort as it may cause stability issues.<br/>
+Prefer Linux or OSX instead.
+
 ### <a id="windows-preconfigured" href="#windows-preconfigured">Pre-configured installation</a>
 
 All you need to do is download the [latest self-extracting archive](http://arachni-scanner.com/latest#windows),