diff --git a/src/main/java/istlab/KisoJikken/JExecutor.java b/src/main/java/istlab/KisoJikken/JExecutor.java
index 14921ec..089dbc5 100644
--- a/src/main/java/istlab/KisoJikken/JExecutor.java
+++ b/src/main/java/istlab/KisoJikken/JExecutor.java
@@ -67,7 +67,7 @@
             e1.printStackTrace();
         }
 
-        con.Systemoutprintln("== 実行終了 ==");
+        con.Systemoutprintln("== 実行終了 ==  (ALT+Wで閉じる)");
         thread = null;
     }
 }
diff --git a/src/main/java/istlab/KisoJikken/JTAConsole.java b/src/main/java/istlab/KisoJikken/JTAConsole.java
index 2966834..0f44aa7 100644
--- a/src/main/java/istlab/KisoJikken/JTAConsole.java
+++ b/src/main/java/istlab/KisoJikken/JTAConsole.java
@@ -99,11 +99,11 @@
             }
             process.waitFor();
 
-        } catch (IOException e) {
-            e.printStackTrace();
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
+        } catch (IOException | InterruptedException e) {
+            // e.printStackTrace();
+            System.out.print(e.getClass().getCanonicalName()+" : ");
+            System.out.println(e.getLocalizedMessage());
+        } 
 
         Systemoutprintln("=== end ===");
 
@@ -143,8 +143,7 @@
 
     }
 
-    @Override
-    public void windowClosing(WindowEvent e) {
+    private void destroyProcess() {
         try {
             if (outstream != null)
                 outstream.close();
@@ -154,6 +153,12 @@
             e1.printStackTrace();
         }
         process.destroyForcibly();
+    }
+
+    @Override
+    public void windowClosing(WindowEvent e) {
+        destroyProcess();
+
         winStack.remove(this);
         setVisible(false);
         if (!process.isAlive()) {
@@ -214,7 +219,11 @@
         }
 
         if (e.isControlDown() || e.isAltDown() || e.isAltGraphDown() || e.isMetaDown()) {
-            if (e.getKeyCode() == 67 || e.getKeyCode() == 68 || e.getKeyCode() == 87) { // CTRL+C or CTRL+D or Alt-W
+            if (e.getKeyCode() == 67) {
+                // プロセスのみ終了
+                destroyProcess();
+            }
+            if (e.getKeyCode() == 68 || e.getKeyCode() == 87) { // CTRL+C or CTRL+D or Alt-W
                 windowClosing(null);
                 frame.dispose();
             }
@@ -245,33 +254,33 @@
 
     @Override
     public void mouseClicked(MouseEvent e) {
-        if (e.getButton()==MouseEvent.BUTTON3){
+        if (e.getButton() == MouseEvent.BUTTON3) {
             JTAConsolePopup popupMenu = new JTAConsolePopup(this);
-            popupMenu.show(this,e.getX(),e.getY());
+            popupMenu.show(this, e.getX(), e.getY());
         }
     }
 
     @Override
     public void mousePressed(MouseEvent e) {
         // TODO Auto-generated method stub
-        
+
     }
 
     @Override
     public void mouseReleased(MouseEvent e) {
         // TODO Auto-generated method stub
-        
+
     }
 
     @Override
     public void mouseEntered(MouseEvent e) {
         // TODO Auto-generated method stub
-        
+
     }
 
     @Override
     public void mouseExited(MouseEvent e) {
         // TODO Auto-generated method stub
-        
+
     }
 }
diff --git a/src/main/java/istlab/KisoJikken/ScriptRunner.java b/src/main/java/istlab/KisoJikken/ScriptRunner.java
index 354d77f..8cad503 100644
--- a/src/main/java/istlab/KisoJikken/ScriptRunner.java
+++ b/src/main/java/istlab/KisoJikken/ScriptRunner.java
@@ -57,7 +57,7 @@
         } catch (IOException | InterruptedException e1) {
             e1.printStackTrace();
         }
-        con.Systemoutprintln("== 終了 ==");
+        con.Systemoutprintln("== 終了 ==  (ALT+Wで閉じる)");
         thread = null;
         runB.setText("Run");
     }