Outlook Duplicate Remover Frequently Asked Questions
Find answers to common questions about licensing, system compatibility, folder selection, and duplicate cleanup for Outlook Duplicate Remover.
Q What are the limitations of the free trial version?
Free trial: scan and preview duplicate items. Cleanup requires a paid license.
Q Does Prism Outlook Duplicate Remover modify my original PST/OST file?
No. The software reads your original Outlook data file in 100% read-only mode and creates a new cleaned PST file or moves duplicates to a designated quarantine folder, eliminating the risk of data corruption.
Q What types of Outlook items can be deduplicated?
It can scan and remove duplicate Emails, Contacts, Calendar Appointments, Tasks, Notes, and Journal entries across single or multiple PST/OST files.
Q How does the tool identify duplicate emails with different timestamps or reply prefixes?
It uses SHA-256 cryptographic hashing on normalized message headers, body text, RFC Message-ID, and attachment checksums, automatically stripping reply prefixes like 'Re:' and 'Fwd:' to avoid false negatives.
Q Can I review duplicates side-by-side before deleting or moving them?
Yes. The interactive split-screen diff inspector displays the original item and duplicate item side-by-side with highlighted differences, allowing you to include or exclude items before processing.
Q Can the software handle very large 50GB+ PST files without freezing?
Yes. Built on .NET 8 LTS with a streaming buffer pipeline, the software operates with an ultra-low memory footprint (< 60 MB RAM) and processes large enterprise archives smoothly without UI lockups.
Q How will I receive my license key after purchasing?
Following successful payment, your digital license key is delivered to your billing email address. If you need your key resent or require assistance with activation, you can contact our team anytime via our Contact Support page.
Q What is the refund policy for Outlook Duplicate Remover?
We provide free evaluation versions for all tools so you can test compatibility and conversion fidelity on your own data before buying. If you encounter a verified technical limitation or defect that our engineering support team cannot resolve, purchases are covered under the terms detailed on our Refund Policy page.
Have a specific question not covered above?
Our technical support team is available to assist with installation, folder scanning, or licensing queries.