DataExpert OST to PST Converter SOFTWARE
Do it yourself on your own PC — nothing leaves your machine. Windows software that opens an orphaned or corrupt OST and rebuilds it as a PST Outlook can open.
- Whole mailbox in one click — or pick a single folder
- Keeps the folder tree, attachments, contacts and calendar
- Handles Gmail/IMAP OST files that lose Sent Mail in other converters
- No size limit — 9 GB, 50 GB, 99 GB
- Runs offline. Your mail never leaves your computer.
Windows 10/11 · 64-bit · 155 MB · nothing else to install
OST to PST Converter NEW
Outlook will not open an OST whose mailbox was deleted. Check yours free — folders, mail count and whether it is damaged — then we convert it to a working PST.
- Orphaned OST — employee left, Microsoft 365 mailbox deleted
- Corrupt OST that scanpst.exe cannot touch
- Large mailboxes — 9 GB and above handled at the lab
PST Repair NEW
Outlook says the file is not a personal folders file, or scanpst.exe ran and your mail came back short. Upload the PST and see what is really in it — before anyone touches it again.
- Tells you if the file is damaged, and where
- Counts the mail Outlook can still see
- Counts the items scanpst.exe would delete — the ones a real repair puts back
- Warns you if it is an old 2 GB ANSI file about to corrupt itself
Up to 200 MB here — the file is deleted the moment the report is made, and we never open your mail. Bigger PST files (and 50 GB ones) are repaired at the lab: 98601 90235.
Is My Data Recoverable?
Answer 3 quick questions for an instant assessment.
1. What type of device?
2. What happened?
3. Since the problem, have you used the device?
Disk Failure Symptom Checker
Pick what you're seeing or hearing — we'll tell you the likely cause and what to do right now.
Disk Health (SMART) Explainer
Software like CrystalDiskInfo showed a status? Pick it to understand how urgent it is.
Recovery Cost Estimator
A rough indicative range. Your exact quote is always free and given after diagnosis — no recovery, no fee.
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