You can use the Settings menu to choose general settings for the appearance and operation of the software.

Language
Lets you choose the language of HTML Guard's user interface.
Show warnings > File already encrypted
When an attempt is made to encrypt an already encrypted HTML file, determines whether a warning to this effect will be displayed.
Load last project on startup
Determines whether the most recent project should be loaded into HTML Guard the next time that the program is started. If this option is set off, the program will open with a blank project instead.