diff --git a/README.md b/README.md
index e0a1619..2a81157 100644
--- a/README.md
+++ b/README.md
@@ -48,3 +48,7 @@ Windows sucks, but you can need monitoring windows servers or desktops.
 
 First, install python 3 (last stable version if you can, actually python 3.9). You can download from [here](https://www.python.org/downloads/)
 
+###Important
+
+**You must install python with "Add to windows path" enabled.**
+