MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
Console - Console is a Windows console window enhancement.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
Cygwin - Cygwin is a set of tools that provide Linux and POSIX functionality to Windows.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.