diff --git a/c_os/user/CoopThreadDemo.cc b/c_os/user/CoopThreadDemo.cc
deleted file mode 100644
index ddce042..0000000
--- a/c_os/user/CoopThreadDemo.cc
+++ /dev/null
@@ -1,47 +0,0 @@
-/*****************************************************************************
- *                                                                           *
- *             C O O P E R A T I V E T H R E A D D E M O                     *
- *                                                                           *
- *---------------------------------------------------------------------------*
- * Beschreibung:    Beispiel für kooperative Threads.                        *
- *                                                                           *
- * Autor:           Michael Schoettner, HHU, 21.8.2016                       *
- *****************************************************************************/
-
-#include "user/CoopThreadDemo.h"
-#include "kernel/Globals.h"
-#include "user/LoopThread.h"
-
-/*****************************************************************************
- * Methode:         CoopThreadDemo::run                                      *
- *---------------------------------------------------------------------------*
- * Beschreibung:    Der Anwendungsthread erzeugt drei Threads die Zaehler    *
- *                  ausgeben und terminiert sich selbst.                     *
- *****************************************************************************/
-void CoopThreadDemo::run() {
-
-    /* Hier muss Code eingefuegt werden */
-
-    kout << "Allocating LoopThread A" << endl;
-    Thread* cntA = new LoopThread(0);
-    kout << "Allocating LoopThread B" << endl;
-    Thread* cntB = new LoopThread(1);
-    kout << "Allocating LoopThread C" << endl;
-    Thread* cntC = new LoopThread(2);
-
-    kout << "Adding threads to ready queue" << endl;
-    scheduler.ready(cntA);
-    scheduler.ready(cntB);
-    scheduler.ready(cntC);
-
-    int cnt = 0;
-    while (cnt++ < 1000) {
-        scheduler.yield();
-    }
-
-    kout << "Killing LoopThread A" << endl;
-    scheduler.kill(cntA);
-
-    kout << "Exiting main thread" << endl;
-    scheduler.exit();
-}
diff --git a/c_os/user/CoopThreadDemo.h b/c_os/user/CoopThreadDemo.h
deleted file mode 100644
index 85f1c6a..0000000
--- a/c_os/user/CoopThreadDemo.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*****************************************************************************
- *                                                                           *
- *             C O O P E R A T I V E T H R E A D D E M O                     *
- *                                                                           *
- *---------------------------------------------------------------------------*
- * Beschreibung:    Beispiel für kooperative Threads.                        *
- *                                                                           *
- * Autor:           Michael Schoettner, HHU, 21.8.2016                       *
- *****************************************************************************/
-#ifndef __coopthreaddemo_include__
-#define __coopthreaddemo_include__
-
-#include "kernel/Globals.h"
-#include "kernel/threads/Thread.h"
-
-class CoopThreadDemo : public Thread {
-
-private:
-    CoopThreadDemo(const CoopThreadDemo& copy) = delete;  // Verhindere Kopieren
-
-public:
-    // Gib dem Anwendungsthread einen Stack.
-    CoopThreadDemo() {
-        kout << "Initialized CoopThreadDemo" << endl;
-    }
-
-    // Thread-Startmethode
-    void run() override;
-};
-
-#endif
diff --git a/c_os/user/LoopThread.cc b/c_os/user/LoopThread.cc
deleted file mode 100644
index 9fcc61f..0000000
--- a/c_os/user/LoopThread.cc
+++ /dev/null
@@ -1,27 +0,0 @@
-/*****************************************************************************
- *                                                                           *
- *                        L O O P T H R E A D                                *
- *                                                                           *
- *---------------------------------------------------------------------------*
- * Beschreibung:    Demo eines Threads. Schleife die Zahlen ausgibt.         *
- *****************************************************************************/
-
-#include "user/LoopThread.h"
-#include "kernel/Globals.h"
-
-/*****************************************************************************
- * Methode:         LoopThread::run                                          *
- *---------------------------------------------------------------------------*
- * Beschreibung:    Code des Threads.                                        *
- *****************************************************************************/
-void LoopThread::run() {
-
-    /* Hier muss Code eingefuegt werden */
-
-    int cnt = 0;
-    while (true) {
-        kout.setpos(55, this->id);
-        kout << this->id << ": " << dec << cnt++ << endl;
-        scheduler.yield();
-    }
-}
diff --git a/c_os/user/LoopThread.h b/c_os/user/LoopThread.h
deleted file mode 100644
index 806cb33..0000000
--- a/c_os/user/LoopThread.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*****************************************************************************
- *                                                                           *
- *                        L O O P T H R E A D                                *
- *                                                                           *
- *---------------------------------------------------------------------------*
- * Beschreibung:    Demo eines Threads. Schleife die Zahlen ausgibt.         *
- *****************************************************************************/
-
-#ifndef __loopthread_include__
-#define __loopthread_include__
-
-#include "kernel/threads/Thread.h"
-
-class LoopThread : public Thread {
-
-private:
-    int id;
-
-    LoopThread(const LoopThread& copy) = delete;  // Verhindere Kopieren
-
-public:
-    // Gibt der Loop einen Stack und eine Id.
-    LoopThread(int i) : id(i) {}
-
-    // Zaehlt einen Zaehler hoch und gibt ihn auf dem Bildschirm aus.
-    void run() override;
-};
-
-#endif