diff --git a/installer.sh b/installer.sh
index 6ecbd2a..b9cb8d1 100644
--- a/installer.sh
+++ b/installer.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 
+
 ##--------------------##
 #   Legacy/Main Menu   #
 ##--------------------##
@@ -157,6 +158,14 @@ done
 }
 
 
+##----------------##
+#   System-Check   #
+##----------------##
+
+if [[ -d /etc/ICTM ]]; then msg "             This system has already been installed by Web-V2" && exit; fi
+if [[ ! -z $(dpkg -l | cut -d " " -f 3 | grep "^mysql-server") ]] || [[ ! -z $(dpkg -l | cut -d " " -f 3 | grep "nginx") ]] || [[ ! -z $(dpkg -l | cut -d " " -f 3 | grep "apache") ]] || [[ ! -z $(dpkg -l | cut -d " " -f 3 | grep "php") ]] ; then msg " This system has installed packages, Web-V2 is designed for clean systems"; fi
+
+
 ##--------------------------##
 #   Installer-Requirements   #
 ##--------------------------##