diff --git a/demo/os/windows/easylogger/port/elog_port.c b/demo/os/windows/easylogger/port/elog_port.c
index 68b43ec..8c69fe3 100644
--- a/demo/os/windows/easylogger/port/elog_port.c
+++ b/demo/os/windows/easylogger/port/elog_port.c
@@ -53,6 +53,18 @@ ElogErrCode elog_port_init(void) {
     return result;
 }
 
+/**
+ * EasyLogger port deinitialize
+ *
+ */
+void elog_port_deinit(void) {
+#ifdef ELOG_FILE_ENABLE
+	elog_file_deinit();
+#endif
+
+	CloseHandle(output_lock);
+}
+
 /**
  * output log port interface
  *
diff --git a/demo/os/windows/make.bat b/demo/os/windows/make.bat
index 828b5a5..a901d69 100644
--- a/demo/os/windows/make.bat
+++ b/demo/os/windows/make.bat
@@ -1,3 +1,4 @@
+@if not exist .\out mkdir .\out
 gcc -I "easylogger\inc" -I "..\..\..\easylogger\inc" -O0 -g3 -Wall -c "..\..\..\easylogger\src\elog.c" -o "out\elog.o" 
 gcc -I "easylogger\inc" -I "..\..\..\easylogger\inc" -I "..\..\..\easylogger\plugins\file" -O0 -g3 -Wall -c "easylogger\port\elog_port.c" -o "out\elog_port.o"
 gcc -I "easylogger\inc" -I "..\..\..\easylogger\inc" -O0 -g3 -Wall -c  "..\..\..\easylogger\src\elog_utils.c" -o "out\elog_utils.o"