diff --git a/README.md b/README.md
index 8e7dc77de..26602e73c 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,8 @@ Download
 
 Wox 1.0 beta has been released. [Check it out](https://github.com/qianlifeng/Wox/releases/tag/v1.0-beta)!
 
+**Only For XP users:** you need to install [.net framework 3.5](http://www.microsoft.com/en-us/download/details.aspx?id=21) if you has not installed yet.
+
 
 Create and Share Plugin
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