Fix Microsoft Outlook 0xc0000005 Error Quickly

Written By Kiran Sharma
Updated on August 20th, 2025

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John Jones Query:-
“I tried opening Outlook this morning, but it suddenly crashed and showed some weird error code, 0xc0000005. I didn’t change anything, and now I can’t even access my emails. What does this mean, and how can I fix Microsoft Outlook 0xc0000005 Error without losing my data?”

Introduction:

Microsoft Outlook is the most common application that many users use. The 0xc0000005 error is typically linked to problems like system file corruption, faulty updates, damaged Outlook profiles, or antivirus conflicts. As a result, you can not access your emails or even open Outlook. However, you can easily fix it with the right steps and tools. In this complete blog, we will show you simple and effective methods to resolve “Outlook error 0xc0000005″. In addition, you can use the verified Outlook PST Recovery Tool for a 100% accurate recovery.

Table of Contents

Real-Life Scenario

Ozen works as an accountant in a Chicago company. One morning, as he opened Microsoft Outlook to check urgent client emails. The application crashed and displayed a strange message: Error code 0xc0000005. After some research, Ozen discovered that the main reason behind this error was file corruption in the Outlook PST file. To fix it, he used the MigrateEmails PST Repair Tool to repair the corrupted data. Within a few simple steps, he successfully recovered his mailbox and resolved the issue.

Simple Steps to Fix Microsoft Outlook 0xc0000005 Error

To fix corrupt/damaged PST files, follow these simple steps:

First, download and install the MigarteEmails PST Recovery Tool.
Click on Open and add the corrupted Outlook PST file.
Then, choose Recovery Modes and other options as per your needs.
Lastly, preview all the recovered Outlook files. Click Save.

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What Is Outlook Error Code 0xc0000005?

The 0xc0000005 error in Microsoft Outlook is a startup issue. This message means Outlook can’t run properly due to an internal problem. It could be a damaged file, an issue with your system, or even interference from another program. Most users see a message like:

“The application was unable to start correctly (0xc0000005). Click OK to close the application.”

Why does Outlook Crash Exception Code: 0xc0000005 occur?

Corrupted PST or OST files.
Faulty Windows Updates.
Add-ins or Plugins.
Antivirus Interference.
Damaged Outlook Profile.
Missing or Corrupt System Files.
Improper Outlook Installation.

How to Fix Microsoft Outlook 0xc0000005 Error Manually?

If Outlook crashes with the 0xc0000005 error, there are several manual ways to troubleshoot and fix it. Below are the most effective methods:

Method 01: Run Microsoft Outlook in Safe Mode

Safe Mode disables add-ins that create the error. Here is how you can fix it:

First, click Windows + R to run the dialog.
Then, type: outlook.exe /safe and hit Enter.
If Outlook opens, the issue is likely caused by a faulty add-in.
Finally, disable add-ins by going to File > Options> Add-ins and turning them off one by one.

Method 02: Repair Outlook to Resolve “Outlook error 0xc0000005″

Initially, go to Control Panel > Programs > Programs and Features.
Then, click Microsoft Office, right-click, and choose Change.
After that, select Quick Repair first. If it doesn’t work, try Online Repair.

Method 03: Create a New Profile to Fix Microsoft Outlook 0xc0000005 Windows 11

If your current profile is corrupted, creating a new one can help.

Open Control Panel > Mail > Show Profiles.
Now, click Add, name the new profile, and set up your email account.
Lastly, under “Always use this profile“, select the new one.

Method 04: Disable Antivirus or Firewall Temporarily

Some antivirus programs block Outlook from launching.

Turn off your antivirus temporarily and check if Outlook opens.
If yes, add Outlook to your antivirus’s exception list or update the antivirus.

Method 05: Check for Windows or Office Updates

Outdated or faulty updates can cause conflicts.

Go to Settings > Update & Security > Windows Update.
Afterwards, click Check for updates.
Also, open Outlook > File > Office Account > Update Options > Update Now.

Professional Tool to Fix Microsoft Outlook 0xc0000005 Error

Manual fixes work well for minor issues. But if your Outlook error is caused by a severely corrupted PST file or system issues. Using a trusted professional tool can save time and guarantee accuracy. MigrateEmails Outlook PST Repair Tool is specially designed to recover corrupted PST files and fix Outlook errors like 0xc0000005. It works safely without losing your emails, contacts, calendar events, or other important data.

Why Use the MigrateEmails PST Repair Tool?

This tool recovers deleted or lost emails with attachments.
Supports all Outlook versions (2019, 2016, 2013, and earlier).
It has a user-friendly interface for non-technical users.
Maintains 100% data integrity during recovery.
Also, helps to recreate Outlook Profile and more.

Simple Steps to Repair Outlook PST and Fix Error 0xc0000005

Firstly, download the MigrateEmails Outlook PST Repair Tool.
Now, click on Open and add the corrupted/damaged PST files.
Then, choose Recovery Modes: Standard or Advanced as per your needs.
After that, you can preview (cross-verify) the recovered PST file.
In the end, click Save and choose a different Saving Format from the list.

How to Prevent Outlook Crashes in the Future?

Once you’ve fixed the Outlook 0xc0000005 error, it’s smart to take a few simple steps to avoid it happening again.

Always install the latest Outlook and Windows updates.
Split or archive your PST files if they get too large.
Always use the Exit or Close option to let it save changes safely.
Moreover, save a backup copy of your Outlook data weekly or monthly.

Final Words

If Outlook won’t start due to error 0xc0000005, you have several options to fix it. You can pick either the manual method or a professional tool to fix Microsoft Outlook 0xc0000005 Error. The manual method is free to use and applicable for a basic level recovery. Besides that, if your Outlook profile is severely corrupted, you can use the professional recovery tool. This helps you recover your corrupted/damaged Outlook PST file with 100% accuracy.

Frequently Asked Questions

Q1. What’s the main reason for Outlook Error code 0xc0000005?

Ans: The most common reason for Outlook error 0xc0000005 is a corrupted PST file. However, it can also be triggered by faulty Windows or Office updates, damaged Outlook profiles, add-in conflicts, or interference from antivirus software.

Q2. Which is the best tool to fix Microsoft Outlook 0xc0000005 Error?

Ans: The best tool to fix this error is the MigrateEmails Outlook PST Repair Tool. It helps recover corrupt PST files safely, preserves all your mailbox data, and restores Outlook access without affecting your emails, contacts, or attachments.

About The Author:

Kiran Sharma

I am Kiran Sharma, a Technical Expert in Content writing. I have technical expertise in the field of Email Backup, Data Recovery, and Email Migration, and resolve technical queries related to Cloud Backup or Email Migration for individuals and businesses.