Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
PuTTY - Popular free terminal application. Mostly used as an SSH client.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
Shell NGN - SSH From your browser
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more