diff --git a/bin_util/blkid b/bin_util/blkid
deleted file mode 100755
index ba5906d..0000000
Binary files a/bin_util/blkid and /dev/null differ
diff --git a/bin_util/hwinfo b/bin_util/hwinfo
deleted file mode 100755
index a509a53..0000000
Binary files a/bin_util/hwinfo and /dev/null differ
diff --git a/bin_util/shred b/bin_util/shred
deleted file mode 100755
index df459fb..0000000
Binary files a/bin_util/shred and /dev/null differ
diff --git a/bin_util/smartctl b/bin_util/smartctl
deleted file mode 100755
index f1bac60..0000000
Binary files a/bin_util/smartctl and /dev/null differ
diff --git a/doc/prototype_manual_DE.md b/doc/prototype_manual_DE.md
index d8353eb..c9d5039 100644
--- a/doc/prototype_manual_DE.md
+++ b/doc/prototype_manual_DE.md
@@ -1,5 +1,5 @@
 **[1]** In terminal als root einloggen\
-**[2]** In reHDD wechseln\
+**[2]** In reHDD_prototype wechseln\
 **[3]** Abhängigkeiten installieren\
 `apt-get install smartmontools`\
 `apt-get install hwinfo`\
@@ -24,6 +24,33 @@ Die PARTUUID kann mittels `blkid /dev/sda` ermittelt werden, wobei `/dev/sda` de
 
 **[6]** reHDD starten mit `./reHDD`
 
+# Benutzung
 
+reHDD sucht automatisch nach allen verfügbaren Festplatten und filtert die zu ingnorierenden heraus.
+Für die verbleibenden Festplatten wird eine Übersicht ausgegeben. Der Nutzer wird gefragt welche Festplatte bearbeiten werden soll und gibt die Nummer ein. 
 
+Beispiel:
 
+linux-898t:/home/hendrik/Schreibtisch/reHDD_prototype # ./reHDD 
+refurbishingHddTool
+created app
+app logic
+search drives ...
+------------DRIVES---------------
+        Drive: 0
+Path:          /dev/sdd
+ModelFamily:   
+ModelName:     ADATA SU650
+Capacity:      120034123776
+Serial:        H50125K001601
+PowerOnHours:  93
+PowerCycle:    187
+ErrorCount:    0
+
+---------------------------------
+Select drive to wipe:
+0
+Selected drive index: 0
+wipe: shred -v /dev/sdd
+shred: /dev/sdd: Durchgang 1/3 (random)…
+shred: /dev/sdd: Durchgang 1/3 (random)…847MiB/112GiB 0%
diff --git a/src/reHDD.cpp b/src/reHDD.cpp
index a123c19..ec03080 100644
--- a/src/reHDD.cpp
+++ b/src/reHDD.cpp
@@ -55,7 +55,7 @@ void reHDD::searchDrives(vector <Drive>* pvecDrives)
     char * cLine = NULL;
     size_t len = 0;
 
-    FILE* outputfileHwinfo = popen("./bin_util/hwinfo --short --disk", "r");
+    FILE* outputfileHwinfo = popen("hwinfo --short --disk", "r");
 
     if (outputfileHwinfo == NULL)
     {
@@ -120,7 +120,7 @@ void reHDD::filterIgnoredDrives(vector <Drive>* pvecDrives)
                 // cout << "Same drive path found" << endl;
                 char * cLine = NULL;
                 size_t len = 0;
-                string sCMD = "./bin_util/blkid ";
+                string sCMD = "blkid ";
                 sCMD.append(it->getPath());
                 //  cout << "cmd: " << sCMD << endl;
                 FILE* outputfileBlkid = popen(sCMD.c_str(), "r"); //get UUID from drive
diff --git a/src/smart.cpp b/src/smart.cpp
index 5350ed2..f85cab1 100644
--- a/src/smart.cpp
+++ b/src/smart.cpp
@@ -33,7 +33,7 @@ void SMART::readSMARTData(Drive* drive)
     size_t len = 0; //lenght of found line
     char* cLine = NULL; //found line
 
-    string sCMD = ("./bin_util/smartctl --json -a ");
+    string sCMD = ("smartctl --json -a ");
     sCMD.append(drive->getPath());
     const char* cpComand = sCMD.c_str();
 
diff --git a/src/wipe.cpp b/src/wipe.cpp
index aac5c33..a5626f9 100644
--- a/src/wipe.cpp
+++ b/src/wipe.cpp
@@ -20,7 +20,7 @@ void Wipe::wipeDrive(Drive* drive)
     char* cLine = NULL; //found line
 
 #ifndef DRYRUN
-    string sCMD = ("./bin_util/shred -v ");
+    string sCMD = ("shred -v ");
     sCMD.append(drive->getPath());
 #endif
 #ifdef DRYRUN