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How to repair corrupted data and emails from Microsoft Outlook

Guidelines for repairing letters, contacts, reminders, appointments, tasks, notes and other data from damaged *.pst or *.ost Microsoft Outlook files of all versions:

Download, install and open the Outlook Repair Toolbox tool from the site: https://www.repairtoolbox.com/download/OutlookRepairToolboxInstall.exe.
Select a damaged PST file.
Select Recovery mode.
Select a folder to save the received data.
Select Save as PST file.
Click the save button Save.

OST PST Converter

How to repair a damaged Microsoft Outlook file

Information and data restoration from corrupted Microsoft Outlook *.PST and *.OST files all versions (ANSI and Unicode). The MS Outlook PST repair tool also enables you to convert *.OST files to *.PST format.

Main capabilities of the Microsoft Outlook file repair tool include:

Repair information from *.PST files in Unicode format for Microsoft Outlook versions 2003, 2007, 2010, 2013, 2016, 2019, 2021, 2024 and Outlook for Microsoft 365.
Repair notes from corrupted *.PST files.
Repair data from files larger than 2 GB.
Read corrupted *.OST files for all versions.
Convert Microsoft Outlook *.OST files to *.PST format.
Save data as separate *.MSG files.
Save data as separate *.EML files.
Repair mail in various formats: plain text, RTF and HTML.
Repair file attachments.
Repair object attachments.
Repair contacts from corrupted *.PST files.

Repair information from *.PST files in ANSI format for Microsoft Outlook versions 97, 98, 2000, 2002 and XP.
Repair calendar from corrupted *.PST files.
Repair alerts from corrupted *.PST files.
Repair errors caused by incorrect operation of scanpst.exe program.
Repair folder structure and types.
Save data to multiple PST files without exceeding a specified volume.
Repair password-protected PST files.
Repair encrypted and unencrypted *.OST and *.PST files.
Selective saving of restored folders and objects.
Supports drag and drop operations.
Practical, easy-to-use program interface in the form of a wizard.

Requirements

Microsoft Outlook should be installed your computer (though this is not essential)
Windows 98/Me/2000/XP/Vista/7/8/10/11 or
Windows Server 2003/2008/2012/2016 and above

Note:

Outlook Repair Toolbox do not support a recovering of contact groups yet.

The software team development of Outlook Repair Toolbox is distributed under Try-Before-Buy license that does not belong to GNU General Public License (GPL) or something like that. Despite it is not freeware, free version of Outlook Repair Toolbox have a Free DEMO version for anyone. Please note Outlook Repair Toolbox is not open source program or free software so you should donate to the professional team development of RepairToolbox.com to remove all limitations and keep on using this program for as long as you need.

FAQ

Installation steps:

Make sure that you have a 64-bit version of Microsoft Windows installed.
You need to remove the previous 32-bit version of Microsoft Outlook by doing the following:
1. Click the Start button and then click Control Panel.
2. Open the Programs category and click Programs and Features.
3. Select Microsoft Outlook from the list and click Uninstall.
Go to Windows Explorer or Computer, then open the Microsoft Windows installation disc.
Open the Office folder
Launch the setup64.exe executable file
Follow on-screen instructions

Note: by default, the 32-bit version of Microsoft Outlook is installed.

Answer:

To repair large PST files bigger than 4 GB, the following must be installed on the computer:

Microsoft Outlook 64-bit
Microsoft Windows 64-bit

If they are, the Outlook Repair Toolbox program is not limited by the amount of data it can handle in 32-bit systems and will be able to completely restore and save the data in a new PST file.

If Microsoft Outlook 32-bit is installed on the computer, then the operation of the Outlook Repair Toolbox program is limited by the RAM that is needed to work with large PST files. If the installation disk or software distribution package is available, Microsoft Outlook 64-bit can be installed instead of the 32-bit version of Microsoft Outlook. For more detailed information about installing the 64-bit version of Microsoft Outlook, please consult the previous question.

Answer:

Conversion of a large OST file requires that all the necessary software components be installed on a 64-bit system.

Microsoft Windows 64-bit
Microsoft Outlook 64-bit
Outlook Repair Toolbox 4.0 or newer version

Only in this case will you be able to overcome RAM limitations and convert OST files of virtually any size.

If all these conditions are met, you can proceed to data conversion. Start Outlook Repair Toolbox and do the following:

Select a source OST file on the first page.
On the next step, select the Conversion mode.
Select the data to be converted (emails, contacts, meetings, et cetera).
Specify the destination path or select the target folder for saving converted data.
Select the Save to PST option.

The process of reading an OST file and exporting its data takes some time, and its duration depends on the performance of your computer and the speed of your hard drive.

Note:
When Microsoft Outlook is installed with default settings, the 32-bit version is installed. To learn how to install the 64-bit version of Microsoft Outlook, read first question.

Buying Outlook Repair Toolbox

Personal License $39

For personal use for noncommercial purposes

Business License $59

For legal use in enterprise, commercial and governmental environments

Site License $99

For using on several computers of the customer (up to 100 electronic devices) in one building or distributed between several buildings

Cost of online file recovery

Online

$ 10 - per - 1 Gb

Buy Bundle

Save 30%

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How it Works?

Download software from website.Download
Start Install software:
1. Press on downloaded installation file in browser
2. Select a downloaded installation file in Windows Explorer and press Enter or double click on it.
Please confirm warning message.
Run installation wizard.
Run program:
1. Double click on icon on desktop
2. or
3. Select from main menu: Start | Programs | Outlook Repair Toolbox | Outlook Repair Toolbox.
Please select a damaged Microsoft Outlook *.pst file.

You can select a damaged file from the Microsoft Mail Profile or directly from the disk.
And click the Next button.
Please select a mode for program use:
1. Recovery Mode – use it if you need to repair a damaged *.pst or *.ost file.
2. Converter Mode – use it for export data from OST to PST files.
Please confirm a start of recovery process.
On the second page, the customer can view and select the recovered objects that are to be saved (emails, contacts, appointments and so on).
Click the Next button.
Please select a target folder for saving the recovered data to.
And click the Next button.
Please select the type of the recovered content that is to be saved.
On the last page, you will find a detailed log of the recovery process.

Errors

With Outlook Repair Toolbox you can fix next errors:

The file outlook.pst is not a personal folders file.
Errors have been detected in the file outlook.pst. Quit Outlook and all mail-enabled applications, and then use the Inbox repair tool (Scanpst.exe) to diagnose and repair errors in the file. For more information about the Inbox repair tool, see Help.
The Inbox Repair Tool does not recognize the file outlook.pst. No information can be recovered.
Inbox Repair Tool (Scanpst.exe) hangs endlessly and does not perform the repair.
The PST file fixed by Inbox Repair Tool (Scanpst) is empty or does not contain the wanted items.
Outlook.pst can not be accessed - 0x80040116.
File Outlook.pst could not be accessed. Data error. Cyclic redundancy check.
The file Outlook.pst cannot be opened.
Scanpst reports Fatal Error 80040818 when trying to repair the PST file.
Errors have been detected in the file Outlook.pst. Close all mail enabled applications, and then use the Inbox Repair Tool.
FileName.pst file could not be opened. The file may not be compatible with this version of Outlook or it may be corrupted.
OL2000: Unable to use your personal folder file if it exceeds the 2 GB size limit.
An unexpected error prevented access to this file. Use ScanDisk to check the disk for errors, and then try using the Inbox Repair tool again.
Microsoft Outlook has encountered a problem and needs to close. We are sorry for the inconvenience.
Unable to display the folder. The file Outlook.pst could not be accessed. Access denied.
Cannot expand the folder.
The set of folders cannot be opened.
Scanpst reports An unknown error prevented access to the file. Error 0x80070570: The file or directory is corrupted and unreadable.
Unable to open your default e-mail folders.
Unable to display the personal Outlook folder.
Task Microsoft Exchange Server - Receiving reported error (0x8004060C): Unknown Error 0x8004060C
Network problems are preventing connection to the Microsoft Exchange Server computer. Contact your system administrator if this condition persists.