How Do I Convert OLM to PST Without Data Loss? To reduce the possibility of data loss during OLM to PST conversion, begin by keeping an untouched backup of the original OLM file. Use a reliable conversion method that supports important mailbox components, including emails, contacts, calendars, tasks, notes, folders, and attachments. Preview the source data before exporting and select the required folders carefully. Avoid interrupting the conversion process while the PST file is being created. After conversion, verify the output by checking message counts, attachments, folder hierarchy, dates, and email properties. Keeping both the original OLM and converted PST files provides additional protection during migration and verification.



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