Software⏱️ 3 min read📅 2026-06-19

How to Fix Error 0 Error – Outlook does not connect to my pst file “Error 0×80070718”?

Outlook error 0×80070718 prevents connection to PST file on network drive. Inbox Repair tool fails with unknown error 80040116.

Quick Answer: Try running the Inbox Repair tool again, and if that fails, consider using a third-party PST repair tool or seeking further assistance from Microsoft support.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🔧 Proven Troubleshooting Steps
  3. 🎯 Final Words

The error code 0×80070718 in MS Outlook 2010 indicates that the application is unable to connect to the PST file located on a network drive. This issue can be frustrating, especially if you rely heavily on your PST file for email storage and management.

Fortunately, there are steps you can take to troubleshoot and potentially fix this issue. In this guide, we will walk you through the process of identifying the root cause of the error and providing two primary methods for resolving the problem.

⚠️ Common Causes

  • The PST file may be corrupted or damaged, causing Outlook to fail when attempting to connect to it. This can happen due to various reasons such as power outages, software conflicts, or accidental deletion of files.
  • Another possible cause is that the network drive where the PST file is located has become inaccessible or has been removed from the system.

🔧 Proven Troubleshooting Steps

Inbox Repair Tool

  1. Step 1: Step 1: Open Outlook and navigate to the 'File' tab. Click on 'Open & Export' and then select 'Repair Mailbox'. This will launch the Inbox Repair tool.
  2. Step 2: Step 2: In the Inbox Repair tool, select the PST file you want to repair and click 'Start Repair'. The tool may take some time to scan and repair the file.
  3. Step 3: Step 3: If the repair process is successful, Outlook should be able to connect to your PST file. However, if the issue persists, proceed to Method 2.

Rebuilding the PST File

  1. Step 1: Step 1: Open Outlook and navigate to the 'File' tab. Click on 'Open & Export' and then select 'Move Messages'. This will allow you to move your email messages to a new PST file.
  2. Step 2: Step 2: In the Move Messages window, select the PST file you want to rebuild and click 'OK'. This will start the process of rebuilding the PST file.

🎯 Final Words

If neither Method 1 nor Method 2 resolves the issue, it may be necessary to seek further assistance from a Microsoft support specialist or a professional IT technician. Additionally, regular backups of your PST file can help prevent data loss in case of future issues.

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