VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Axcrypt - AxCrypt - Password Protect Files With Strong Encryption. AxCrypt is the leading open source file encryption software for Windows.
ConEmu - ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
Cygwin - Cygwin is a set of tools that provide Linux and POSIX functionality to Windows.