ToolsBaer for OST to EML conversion tool helps to convert all emails together with attachments and keep the original folder structure and message attributes. The technique maintains the data integrity and does not convert information throughout the conversion process. This error commonly occurs when the Exchange profile is destroyed, the server is unavailable, or the account is no longer active. It will therefore not be able to access the user's important emails using Outlook. The conversion of an orphan OST file into EML format is a practical and effective option. It is a popular file format that enables opening and accessing emails using several email applications without requiring the original Outlook profile or server connection. The work has been created to be simple and efficient so that even the user with a minimum technical understanding can execute it without problem.