How to Recover Emails from an Encrypted Outlook PST File

Written By Rohan Wiese
Updated on February 5th, 2026

Microsoft Outlook stores emails, contacts, and calendar data in PST files. To protect sensitive information, users often encrypt these PST files with passwords. However, over time, you may forget the password or face corruption issues. As a result, your PST file becomes inaccessible. Recovering emails from an encrypted PST file becomes crucial, especially if it contains important business or personal data. This guide will help you understand why PST files get encrypted and provide easy solutions as the Aryson Outlook Deleted Email Recovery, to recover emails from encrypted PST files safely. Download Now Purchase Now

Table of Contents

Why Your Outlook PST Files Get Encrypted

Outlook PST files usually get encrypted to protect sensitive email data. However, in many cases, users face encryption issues without even realizing why it happened. Below are the most common reasons explained in a simple way.

Outlook encrypts PST files when a password is set to protect email data.
Forgetting the PST password makes the encrypted file inaccessible.
PST file corruption due to crashes or malware can trigger encryption issues.
Third-party security or encryption tools often encrypt PST files automatically.
Outlook upgrades or profile changes may cause PST encryption conflicts.
Improper Outlook shutdown can mark the PST file as encrypted.
Moving PST files between systems may activate encryption restrictions.
Large or oversized PST files are more prone to encryption-related errors.

Encrypted PST files prevent access to emails, attachments, and other important data. Knowing the type of encryption helps in selecting the right recovery method.

Methods to Recover Emails from Encrypted Outlook PST File

There are two effective approaches to recover emails from an encrypted PST file. Each method suits different situations. First, we will go through the manual methods, which are free but limited. To directly recover locked PST file, professional recovery tools offer complete and secure recovery. Below, both methods are explained step by step to restore emails from PST:

Manual Methods to Recover Emails from Encrypted PST File

Manual methods work only when the password is known or the encryption is weak. However, they still help in basic cases.

Method 01: Recover Emails Using Outlook Import and Export Option

This method works when Outlook can still detect the PST file.

First, open Microsoft Outlook on your system.
Then, go to File >> Open & Export >> Import/Export.
Next, choose Export to a file and select Outlook Data File (.pst).
After that, select the required folders and proceed.
Finally, enter the password if Outlook asks for it.

However, this method fails if the password is unknown.

Method 02: Remove PST Password Using Outlook Settings

This option helps only if you remember the old password.

Open Outlook and click File > Account Settings > Data Files.
Select the encrypted PST file and click Settings.
Choose Change Password and enter the existing password.
Leave the new password field empty and confirm.

As a result, Outlook removes the PST password successfully.

Method 03: Repair Encrypted PST File Using ScanPST.exe

ScanPST.exe is Outlook’s built-in repair tool. So, you download the Free ScanPST.exe to Repair Corrupt PST files easily:

Locate ScanPST.exe in the Microsoft Office installation folder.
Run the software and browse the encrypted PST file.
At last, click on the Start button to scan and repair errors.

Although it repairs corruption, it does not remove strong encryption.

Limitations of Manual Methods

Manual solutions have several drawbacks that users should know.

Manual methods completely fail when the PST file password is forgotten or unknown.
They cannot decrypt strongly encrypted or secured PST files.
Outlook’s built-in options handle only minor issues and not severe PST corruption.
There is a high risk of losing emails, attachments, or folder structure during recovery.
Manual recovery takes a long time, especially when dealing with large PST files.
These methods require technical knowledge, which many users do not have.
Manual solutions do not work consistently across all Outlook versions.
There is no preview option to verify recovered data before saving it.

Due to these limitations, manual methods are not a reliable choice for recovering critical or business-important PST data. Hence, they need an encrypted PST file recovery solution.

Professional Solution to Recover Emails from Encrypted PST File

Aryson Outlook Deleted Email Recovery is a professional and reliable tool to recover emails from encrypted, corrupted, or inaccessible Outlook PST files with complete accuracy. It securely scans the encrypted PST file and restores all mailbox data, including emails, attachments, contacts, calendars, and notes, without changing the original structure. Moreover, it works even without MS Outlook installation, which makes the recovery process simple and hassle-free. Also, it allows users to preview recovered data before saving and supports multiple export formats for added flexibility. Hence, this solution comes out as a user-friendly solution for accessing emails from encrypted PST files.

Simple Steps to Recover Emails from Encrypted PST

Download and install the Aryson Outlook Deleted Email Recovery on your system.
Next, use the Add File or Add Folder option to load one or more PST files into the tool.
After that, the software automatically scans the selected files and lists all recoverable mailbox items.
Select a suitable recovery mode: Standard, Advanced, or Deep, based on the level of file corruption.
Finally, click the Restore button to recover and export the Outlook mailbox data.

Conclusion

In this blog, we discussed why Outlook PST files get encrypted and how this issue can block access to important emails. We also explored both manual and professional methods to recover emails from encrypted PST files. While manual solutions work only in limited situations, a reliable recovery approach offers better accuracy and data safety. Additionally, regular backups and proper Outlook usage help reduce the risk of PST encryption issues in the future.

Frequently Asked Questions:

Q1. Can I recover emails from an encrypted Outlook PST file?

Ans: Yes, emails can be recovered from an encrypted PST file. If the password is known, manual methods may work. However, when the password is forgotten or encryption is strong, the Aryson Outlook Deleted Email Recovery provides better results.

Q2. Does Outlook provide a built-in option to decrypt PST files?

Ans: Outlook allows password removal only when the existing password is known. It does not support decrypting strongly encrypted or password-forgotten PST files.

Q3. Is it safe to use a professional solution?

Ans: Yes, the Aryson Outlook Deleted Email Recovery is designed to recover data without modifying the original file. They maintain email structure, attachments, and folder hierarchy.

Q4. Will manual methods work if I forget my PST password?

Ans: No, manual methods fail when the PST password is forgotten. In such cases, the professional Aryson Outlook PST Email Recovery is required.

Q5. Which Outlook versions support PST recovery?

Ans: Aryson Outlook Deleted Email Recovery supports all major Outlook versions, including Outlook 2021, 2019, 2016, 2013, and earlier editions.

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About The Author:

Rohan Wiese

Rohan Wiese is a Technical Content Writer at Aryson Technologies, specializing in databases, e-mail recovery, and e-mail migration solutions. He enjoys conducting research and generating information that assists database administrators, businesses, and novices in resolving issues with MS SQL Server, MySQL databases, Cloud Computing, and Microsoft Exchange.

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