How does the Advanced AI Recovery work for PST files?

Our Advanced AI Recovery engine goes beyond standard metadata fixes. It performs deep mailbox reconstruction, rebuilt internal indexes, damaged folder recovery, and B-tree rebuilding to extract the maximum recoverable data from severely corrupted PST files.

Why does Outlook say it cannot open the Outlook Data File?

This error usually occurs when the PST file's internal B-tree or headers become corrupted, often due to exceeding size limits or unexpected system shutdowns. Our tool attempts to reconstruct these structures.

Is my email data secure during the repair process?

Yes. We always attempt a free Browser Repair first, meaning your data never leaves your device. If you choose to escalate to Advanced AI Recovery, your file is processed in an isolated, secure container and immediately purged upon completion.

Repair Corrupted Outlook PST Files with AI

Repair corrupted Outlook Data Files (.pst) instantly using MyFileFixer's browser-first Intelligence Platform. Our Advanced AI Recovery attempts the highest possible recovery rate to salvage your emails, attachments, and contacts securely.

Upload Your PST File

Select or drag and drop a corrupted .pst file. Our universal engine will perform a secure local structural analysis.

Click to upload or drag and drop

.pst files

Cloud Repair

.pst, .ost, .eml, .msg, .mbox

AI Enhanced

.pst, .ost

Secure & Encrypted

AI Repair Engine

Privacy Protected

Auto-Deleted After 24 Hours

Why Outlook PST Files Become Corrupted

Storage & Size Limits

Oversized PST files (exceeding 2GB in older versions or approaching 50GB in newer versions) are highly susceptible to corruption, resulting in truncated data or unexpected EOF errors.

Unexpected Shutdowns

Force-closing Microsoft Outlook, system crashes, or power failures while the PST file is actively being written to can easily corrupt the internal B-Tree structure and headers.

Supported Errors & Symptoms

Our AI-powered PST repair engine is trained to diagnose and resolve a wide variety of structural and logical corruption issues, including:

PST file won't open

Cannot open Outlook Data File

CRC Error (Cyclic Redundancy)

Header corruption

B-tree corruption

Unexpected EOF

Invalid Node Database

Folder & Attachment corruption

Inbox missing / Empty folders

ScanPST failed to repair

Oversized or Truncated PST

Storage corruption

How The Repair Process Works

Browser Repair (Free)

When you select a PST file, we first perform a lightweight analysis entirely within your browser. The engine performs PST validation, Header inspection, B-tree validation, and minor metadata reconstruction. If the corruption is minor, your file is repaired locally—for free, without leaving your device.

Advanced AI Recovery

If the B-tree is completely destroyed or the Node Database is fundamentally unreadable, we automatically offer our Advanced AI Recovery. This secure cloud-based engine performs deep mailbox reconstruction, damaged folder recovery, internal index rebuilding, and intelligent structure reconstruction to extract the maximum possible data.

Private & Secure Recovery

Outlook data files contain highly sensitive personal and business communications. Our browser-first approach ensures that basic repairs happen completely offline on your own hardware. If you opt into Advanced AI Recovery, your file is processed in an isolated container that is immediately purged upon completion.

Supported Outlook Versions

We support recovery from both ANSI (older) and UNICODE (newer) PST formats created by all versions of Microsoft Outlook, including:

Microsoft 365Outlook 2021Outlook 2019Outlook 2016Outlook 2013Outlook 2010Outlook 2007

Need to understand PST internals?

Explore our comprehensive documentation on the Outlook Personal Storage Table (PST) format. Learn about the Node Database (NDB), messaging layer, B-Trees, and manual troubleshooting techniques.

Read the PST Documentation

More Email Repair Tools

More tools in this category are coming soon.