diff --git a/makefile b/makefile
index 8e55ca3..0c09a5e 100644
--- a/makefile
+++ b/makefile
@@ -1,8 +1,9 @@
-#for use on Windows:
-
-#MKDIR=mkdir
+#Windows 7:
 #RM=del /y
 
+#Windows 8.1:
+#RM=del /S
+
 OUTDIR=out
 
 all: $(OUTDIR)