Hello guys, I'm currently in the middle of entering penetration testing and learning all the interesting stuff, I have Kali Linux installed as well as VirtualBox with 3 machines on it Kali (Host), Win7, WinXP Pro SP2, Win2008 Server and I launch Armitage on my host, finding hosts but WinXP is completely invisible I have no Idea why is that, can you guys please if you have any idea why it doesn't show win HP, It reads it when I ping the host but its not in the graphical box.