Diary Defender

Diary Defender is a simple-to-use software application that provides you with a safe environment for writing a personal journal, since you can protect it with a password.
This type of tool is recommended when you share your computer with other people, and prefer to prevent your personal thoughts from being read by them.
Upon program initialization, you are required to set up a username and password; this username will be available to everyone who uses the computer.
So, you can write a diary entry or read the existing ones, use a search function, as well as print, export (to HTML or RTF) and backup diary entries. Diary Defender provides you with a full-featured word processing tool, so you can easily customize text settings in a familiar environment.
From the 'Options' screen, you can make Diary Defender automatically run at system startup, hide its icon until someone has used the app, and check for program updates. Furthermore, you can disable animations.
The straightforward software solution needs a very low amount of CPU and system memory, in order to work properly. It is very responsive to commands and contains guides for users. We have not encountered any problems throughout our testing; Diary Defender did not freeze, crash or pop up error dialogs. Unfortunately, the app has not been updated for a very long time.