If security questions aren't an option and you are completely locked out of the Admin account, specialized tools can help "reveal" or remove the password from the database. PeachTree/Accounting password recovery - Elcomsoft
To avoid getting locked out of your Peachtree account in the future, consider these best practices: i forgot my peachtree password
This report outlines the procedures for addressing a forgotten password in Peachtree (now known as If security questions aren't an option and you