View all items in OST or PST file, whether they're emails, tasks, contacts, notes, calendar events, or attachments, you can easily open them all.
- Open healthy, corrupted, and orphaned PST and OST files
- Recover deleted emails and folders, and export them to various file formats
- Analyze email headers and all message properties using HEX analysis
Whether it's an archived, corrupted, or orphaned Outlook file, OST PST Viewer opens all types of Outlook data files – .pst, .ost, and .msg – without accessing Outlook.
- Open Corrupt PST Files: No need to worry about repairing corrupt Outlook data files to view their content. The tool scans and repairs every PST file, ensuring you can access your content.
- Open Password Protected Files: Access PST files without requiring a password, and in cases where the password is forgotten, you can still get access to the file.
- Protect the privacy of an email message: Support for digitally signed and encrypted secure messages, as well as Active Directory/Exchange x.500 email addresses.
- PST File Locations: You have the flexibility to open any .pst or .ost file, or select a data file from the list of the recently opened files in Outlook.
- Recover Deleted Emails and Folders: Restore accidentally deleted emails and folders, and items that are no longer associated with any folder in Outlook (orphaned items). Learn more...
- Recover Rules and Alerts: Recover disappeared Rules and Alerts in Outlook and export the rules to .rwz file.
Publisher’s description
What is PST Walker?
PST Walker by PST Walker Software is proprietary Windows software.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 32-bit Windows. The main installer is 17.3 MB. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Popularity and file types
On Windows it registers 4 file types, including .eml, .msg, .pst and .ost.
Pros / Cons
Pros
- Documented silent install
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
- No update for more than a year
In short: PST Walker is a Windows tool for 32-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is PST Walker safe to download?
- The file is served by downloads.pstwalker.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
BFDCE151BB7B152F4527C88A7B3E8BAABDF73ABE7CF692120AA63E4F249530ED· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 7.31Latest | September 19, 2025 | 17.3 MB | 32-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id PSTWalker.PSTWalker -epstwalker.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- PST Walker Software
- Licence
- Proprietary
- Price
- See the publisher’s site
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 7.31
- Released
- September 19, 2025
- Added to the catalogue
- September 19, 2025
- Versions listed
- 1
- Website
- pstwalker.com
- winget ID
- PSTWalker.PSTWalker
File types it opens (4)
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is PST Walker free?
PST Walker is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is PST Walker safe to download?
The download comes from downloads.pstwalker.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install PST Walker with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can PST Walker be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does PST Walker run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.