Astrio Passwords is a password manager for Windows that stores login credentials securely. Upon first launch, the program displays a Setup window where the user enters a four-digit PIN to access the vault, confirms it by re-entering it, and then clicks Create to create the password database. The main program window displays a list of saved entries in a table with columns for Title, Username, and Password. Entries are managed using the Add, Edit, Copy Password, and Delete buttons. When adding or editing an entry, the Add Entry window opens, where the user enters the Title, Username, and Password, hidden by periods. Confirm your entry with the OK button or cancel it with the Cancel button. The Copy Password button copies the password for the selected entry to the clipboard without displaying it on the screen.