OST and PST Repair Software
OST Recovery Pro for Corrupt OST Files
OST Recovery Pro repairs damaged Outlook data files and shows every mailbox item before you save it. Add the file, scan it and export recovered mail to the format you need.
- Orphaned and corrupt OST files
- Deleted items shown in red
- Quick and Advanced scan
- Windows desktop edition
- Free DemoTest before you buy
- 30 Day RefundDemo test comes first
- Card or PayPalHosted store checkout
- Fast License KeySent by email
- 24x7 SupportChat and email
1Is this my case?
Which Cases Need OST Recovery Pro?
Find your case below. RecoveryTools software scans the damaged file and brings your mailbox back.
- Outlook Will Not Open the OSTYour offline file throws errors and refuses to sync.
- Exchange Account Is GoneThe server mailbox was deleted and only the OST remains.
- OST File Is OrphanedOutlook no longer links the file to a profile.
- Important Mail Was DeletedYou need items that left the Deleted Items folder.
- Encrypted Mail Blocks YouS/MIME or OpenPGP protection hides message content.
- Scanpst Left a BAK FileYou want data back from the backup copy it created.
Quick and Advanced Scan
Repair light and heavy damage.
Deleted Items
See removed mail marked in red.
Encrypted Mail
Strip encryption from messages.
OST Recovery Pro opens orphaned and inaccessible files with no server connection and no profile rebuild.
Free demo mode previews all your mail and exports 25 items per folder.
2What changes?
What Changes After the Recovery?
Before
- Corrupt OST that stays unreadable
- Deleted mail out of reach
- Orphaned file with no profile
After
- Repaired mailbox in a clear preview
- Deleted items marked in red
- Mail saved as PST or a document
3What can it do?
Which Features Come With OST Recovery Pro?
Add the file, set your clues and recover the password from one window.
Three Input File Types
Add offline, personal and NST files, plus BAK files that Scanpst created.
Corrupt File Repair
Fix damaged files with a Quick Scan or an Advanced Scan.
Seven Preview Modes
Check mail in Normal, Hex, Properties, Header, MIME, HTML or RTF view.
Drive Search
Find mailbox files across selected or all drives.
Deleted Item Recovery
Bring back permanently deleted items and spot them in red.
Encryption Removal
Remove S/MIME and OpenPGP protection with your certificate or key.
Date and Folder Filters
Save only the date range or folders you select.
Split Large PST Output
Cut PST output into parts by size in GB.
Recovery Report
Save a CSV report of every recovered item.
4Is it easy?
How to Recover a OST Password in 4 Steps
Test the recovery on a small file in the free demo. Buy the license when you want every character.
- 1Download
Install the Demo
Download the installer and install it on your Windows computer.
- 2Add
Add the File
Click Add File or search your drives for mailbox files.
- 3Preview
Scan and Preview
Choose a scan mode and check recovered items in the preview.
- 4Save
Save the Mailbox
Click Export, select an output type and set a destination.
Screenshots of every step sit in the OST Recovery Pro guide.
5What will I see?
Which Screens Does the Software Show?
Follow the path from the mode options to the recovered password.

Start the Software
Open the software to begin.

Preview Recovered Mail
Check items in the message header view.

Set the PST Options
Select PST output and a destination.
6Demo or full?
Free Demo vs Full Version
See where the free demo stops and what a license adds.
| Feature | Free Demo | Full Version |
|---|---|---|
| Repair corrupt mailbox files | Yes | Yes |
| Preview with attachments | Yes | Yes |
| Remove email encryption | Yes | Yes |
| Export mail | 25 per folder | All items |
| Price | Free | From $69 |
7Will it fit my system?
System Requirements for OST Recovery Pro
| Product Version | 3.0 for Windows |
|---|---|
| Download Size | 90.4 MB |
| Product Type | Desktop software that repairs OST and PST files |
| Input Files | OST, PST or NST files, plus BAK files from Scanpst |
| Output | PST, EML, MSG, HTML and PDF, plus Microsoft 365 |
| Windows | Windows 11 in 64 bit, Windows 10, 8.1, 8 and 7 in 32 and 64 bit, plus Windows Server 2022, 2019, 2016, 2012 and 2008 |
| Outlook | Outlook 2021, 2019, 2016, 2013, 2010, 2007, 2003 and 2000 in 32 or 64 bit |
| Processor | Intel Core 2 Duo E4600 at 2.40 GHz or better |
| RAM and Disk Space | 4 GB RAM with 100 MB of free disk space |
| Pre Requisite | Microsoft .NET Framework 4.5 or later |
| Report | Recovery report in CSV |
| Demo Limit | Previews all items and exports 25 items per folder |
8What is the price?
How Much Does OST Recovery Pro Cost?
Choose the license by the number of computers. Prices are in US dollars.
1 Computer
$69
- Home and private use
- 1 year of free updates
- Unlimited 24x7 support
Up to 100 Computers
$299
- One location in one country
- 1 year of free updates
- Unlimited 24x7 support
Up to 500 Computers
$799
- Offices in many places
- 1 year of free updates
- Unlimited 24x7 support
See more savings on the RecoveryTools offers page.
9Is it safe?
Can You Trust the Software With Your Mailbox?
See Results First
Test the free demo on your damaged file and check the preview before you pay.
In Business Since 2007
RecoveryTools stands on a company that began in 2007 and now helps users in over 100 countries. Find more about RecoveryTools.
ISO Certified
Standards ISO 9001:2015 for quality and ISO/IEC 27001:2013 for information security back the company. See the awards and certifications page.
Terms in Plain Sight
Refund, privacy and usage terms are public before you pay. See the refund policy, privacy policy and terms of use.
10Need a hand?
Where to Get Help With Your OST Repair
Support engineers answer questions before and after you buy. Visit the RecoveryTools support center for phone numbers and more ways to get help.
Live Chat
Talk to an expert on live chat at any hour.
Email Support
Email support@systoolsgroup.com with your file details and the error you see.
Remote Session
An expert connects to your computer and solves a hard case for you.
Step by Step Guide
Follow the user guide for the add, scan and export screens.
11Still have a question?
Questions About Repairing OST Files
Can the software repair a corrupt OST file?
Yes. Software scans the damaged file in Quick or Advanced mode and loads the recovered mailbox.
Can the software open an orphaned OST file?
Yes. Software opens orphaned and inaccessible files without Exchange Server and without a profile.
Which input files work?
Files ending in OST, PST or NST work. Rename an NST file to OST before you add it.
Can the software use a BAK file?
Yes. Add the BAK file that Scanpst created and recover the data inside it.
Can I recover deleted items?
Yes. Permanently deleted items load into the preview and show in red.
Which output formats can I choose?
PST, EML, MSG, HTML and PDF all work. PST sources can also go to Microsoft 365.
Does the software need Outlook?
No. Most exports work without Outlook. Exporting contacts, calendars, tasks, notes or journals to PST needs Outlook with the Use Outlook option on.
Can the software remove encryption?
Yes. Software removes S/MIME and OpenPGP protection when you provide the certificate or private key and password.
Can I split a large PST file?
Yes. Set a size in GB and the software splits PST output into parts.
Is there a size limit for the OST file?
No. Files of any size work.
Does the software change my original file?
No. Original data and metadata stay untouched.
What does the free demo do?
Free demo mode previews your mailbox and exports 25 items per folder. Full export needs the full version.
Is there a Mac edition?
No. Software works on Windows only.
What is the default OST location?
Outlook stores Outlook.ost in the Local folder under your user AppData folder in Microsoft Outlook.
How much does the software cost?
Personal costs $69 for 1 computer. Business costs $299 for up to 100 computers. Enterprise costs $799 for up to 500 computers.
Can I get a refund?
Yes. Refund requests are accepted for 30 days under the RecoveryTools refund policy. Software bought without a demo evaluation does not qualify. Email a signed Letter of Destruction to sales@recovery-tools.org. Bundle purchases cannot be refunded.
Repair Your OST File With the Free Demo
Download the free demo, preview your recovered mailbox and buy the license when you want to export everything.