The Java Runtime Environment has become one of the most exploited components of any operating system. Even the US Department of Homeland Security warns users to disable java unless they have a really good reason to use it.  For most of us the days of Web sites requiring you to run Java applets has long passed.  However, there still are a good number of desktop applications written in Java so simply...

Port 3389 is the home of the remote desktop protocol that powers Remote Desktop Services on all modern versions of Windows.  If your system has Remote Desktop enabled, it is listening for connections on port 3389.  Since this port is both well known and can be used to attack accounts, it is low hanging fruit for script kiddies and bots looking for an easy target.

The default flower user picture is displayed for new accounts and on various logon screens throughout the OS.  Customizing this picture requires a simple file copy and doing so will allow you to personalize your PC or even display a corporate logo.