This document explains how to fix Microsoft Outlook error 0x800000003 if it is not working properly or throwing an error while installing, updating,  launching/opening, performing action like sending or receiving emails, configuring emails etc.

The error message may look like:
– Application failed to initialize properly(0x80000003). click on OK to terminate the application.
– Outlook crashes and gives error 0x800000003

This solutions applies for following version of Microsoft Outlook:

  • Outlook 2007
  • Outlook 2010
  • Outlook 2013
  • Outlook 365
  • Outlook 2016
  • Microsoft Office (2013/365/2016)
Error InformationError Descripton
Error 0x800000003 Outlook Overview
Total Incidents Recorded 716433
Issues Resolved (Percentage) 99%
Also Known as

Outlook fehler code 0x800000003, foutcode 0x800000003, fejlkode 0x800000003, code d’erreur 0x800000003, codice di errore 0x800000003, feil kode 0x800000003, cod de eroare 0x800000003, código de error 0x800000003

0x800000003 Error Code Log
Avg. Time to Resolve Issue   30 mins
Difficulty Critical
Log Name: Microsoft Outlook <version> 9.90
Source: Incompatible System Files
Event ID: 5986
Operating System
  • Windows 7
  • Windows 8
  • Windows 10
Level: Memory Level
User: <Outlook username>
  • Faulting Application Name: Microsoft Outlook <Application name>, version: 2.4.4045.03956, time stamp: 0×55365309
  • Faulting module name: Outlook  event.dll, version: 5.3.4846.33957
  • Exception code: 0xb07b092e
  • Fault offset: 0xd04b198e
  • Faulting process ID: 0×289
  • Faulting application start time: 0x17abee3b15960736
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Program Files (x86)\Microsoft Outlook\<appname>
  • Report ID: c6b55e53-4511-81c9-9163-4393bab5g453

Cause of 0x800000003 Outlook Error Code

  • Slow ISP Connection
  • System Level Conflict

How to Resolve Outlook Error Code 0x800000003

Step 1: Temporarily Disable Windows Firewall Setting :

1. Hold Win Key + R. Run Dialogue Box will open up.
2. Type Firewall.cpl and Press OK.

3. Click on “Turn Windows Firewall On or Off
Turn Windows Firewall on or off4. In Private network Setting, select “Turn off Windows firewall (not recommended)
5. Do the same for Public Network Setting.
Disable Windows Firewall6. Press OK.
Note: After the issue is resolved you must turn the Windows Firewall on.

Step 2: Start Outlook in Safe Mode:

1. Hold Win Key + R. Run Dialogue Box will open up.
2. Type “Outlook /safe” and Click OK.

In most cases Outlook error 0x800000003 should be resolved by following above steps. If however the issue still persists it means there is some critical issue with your system which needs to be fixed manually and is recommended to be done by an experienced Computer Technician.

You can chat one-on-one with one of our Outlook Support Representative 24/7 by clicking on the Chat button.

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Last Updated: 26/01/2016
Solution ID: 641580

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  • April 7th, 2016

    Posted In: Microsoft Outlook

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