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Contarino Rosario
Contarino Rosario

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How to Resolve Error in OST File?

Introduction: In the world of email communication, Microsoft Outlook stands tall as one of the most popular and versatile email clients. Outlook allows users to manage their emails, calendars, tasks, and contacts seamlessly. Behind the scenes, Outlook relies on OST (Offline Storage Table) files to store a copy of your mailbox data on your local machine. However, like any digital entity, OST files are not immune to errors. In this blog post, we will explore common OST file errors so that you can easily open OST file in Outlook and provide you with practical solutions to resolve them.

Quick Approach: If you are looking for an easy-to-use approach; then try, Advik OST to PST Converter which is a powerful and user-friendly software designed to resolve errors in OST files effectively. With its intuitive interface and advanced features, it provides five different methods to tackle various issues related to OST files. Whether you're facing synchronization problems, corruption, or size limit exceeded errors, this tool has got you covered. Also, you can easily use it if import export is greyed out in Outlook to epxport Outlook emails.

Understanding OST Files

Before we delve into solving OST file errors, it's crucial to understand what these files are and how they function.

What is an OST file?

An OST file is an offline copy of your mailbox data stored on your computer. It allows you to access your emails, calendar items, and other mailbox data even when you're not connected to the internet. When you're online, Outlook synchronizes the data between your mailbox on the mail server and your local OST file.

Common OST File Errors

OST file errors can occur due to various reasons, including network issues, system crashes, or corruption. Here are some common OST file errors you might encounter:

Outlook Error 0x8004010F: This error typically occurs when you try to send or receive emails, and Outlook cannot find the specified folder.

OST File Corruption: Corruption in the OST file can lead to various errors and issues. It can happen due to sudden power outages, hardware failures, or software glitches.

OST File Size Limit Exceeded: OST files have a size limit, and when you exceed it, you may encounter issues such as slow performance or inability to open the file.

Solutions to Resolve OST File Errors

Now, let's explore how to resolve these OST file errors.

1. ScanOST.exe (Inbox Repair Tool)

Microsoft provides a built-in tool called ScanOST.exe (or Inbox Repair Tool) to repair minor OST file issues. Here's how to use it:

a. Close Outlook.

b. Locate and run ScanOST.exe (it's typically found in the Office installation directory).

c. Select your OST file and choose "Start Scan."

d. The tool will scan and repair any errors it finds in the OST file.

2. Create a New OST File

If the OST file is severely corrupted and the Inbox Repair Tool fails to fix it, you can create a new OST file. Here's how:

a. Close Outlook.

b. Delete or rename the existing corrupt OST file (to keep it as a backup).

c. Reopen Outlook, and it will automatically create a new OST file by synchronizing with your mailbox on the server.

3. Disable Cached Exchange Mode

Sometimes, disabling Cached Exchange Mode can help resolve synchronization errors. Here's how:

a. Open Outlook.

b. Go to File > Account Settings > Account Settings.

c. Select your email account and click "Change."

d. Uncheck the box that says "Use Cached Exchange Mode."

e. Click "Next" and then "Finish."

4. OST to PST Conversion

If all else fails, consider converting your OST file to a PST (Personal Storage Table) file. This can be done using specialized OST to PST conversion software. Once converted, you can import the PST file back into Outlook.


OST file errors can disrupt your email workflow and cause frustration. However, with the right tools and knowledge, you can resolve these issues effectively. Whether it's a minor synchronization problem or a major corruption issue, the steps outlined in this guide should help you get your Outlook back on track. Remember to always backup your data before attempting any repairs, and if the problem persists, don't hesitate to seek professional assistance to recover your crucial mailbox data.

Top comments (2)

michael_hooper_3a5b9755db profile image
michael hooper

If your OST file gets corrupted and you want to recover it, take the help of MailsDaddy OST Recovery Tool. Using this solution users can open and access the complete OST file database without hassle. It allows users to recover highly corrupted and damaged OST files without hassle. After the the recovery process users can also convert OST files into PST, EML, MSG, MBOX, RTF, Office 365, Live Exchange Server, and others.
To know more, visit here: Recover OST File

vinit_attri profile image
Vinit Attri • Edited

How to Resolve error in OST files? You can go with KDETools OST Recovery software is a advance solution 100% fix and resolve the all issue of OST files and Convert OST to PST file format successfully.

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