To completely remove the system from your computer:

Login to the system shell as a root user

Stop all services

        /home/servers/httpd/sh/stop
        /home/servers/pbxware/sh/stop
        /home/servers/sitemanager/sh/stop

Remove the servers directory

         rm -rf /home/servers

Edit the inittab and delete all lines starting with 'pw' and 'sw' (Press 'CTRL + O' to save the file and 'CTRL + X' to exit the editor)

         nano /etc/inittab

Remove all modules

         cd /lib/modules`uname -r`/misc