It is a simple matter to secure sensitive data using a freeware application.
If you must keep track of multiple passwords or other sensitive text on a Microsoft Windows PC, you may find LockNote helpful. This free software application creates a single password-protected file that can be saved on any digital media (i.e. hard disk, floppy diskette, USB thumb drive, CD-ROM).
Multiple LockNote files may be stored on the same media, using different filenames.