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How to Fix ‘An unknown error has occurred 0x80040600’ in MS Outlook?

Eric Simson  | Updated on November 24, 2020 | Outlook PST File   | 5 Comments   | 3 min read

As a Microsoft Outlook user, if you tried to read, send, receive, or delete an email message, and on doing so, if you have received the error message: ‘An unknown error has occurred. 0x80040600’, it is all because of the corrupt or damaged Outlook PST file. Moreover, you would have lost access to all the stored data items, such as emails messages, contacts, calendar, tasks, journals, tasks, etc. With this as the outcome, it becomes an urgent need for you to fix the Outlook error 0x80040600. Read on to know the methods that you can use to fix this error so that you are able to access the saved data.

Methods to fix Outlook 0x80040600 error

As Outlook 0x80040600 error is the result of corrupt or damaged Outlook PST file the methods to fix this error involves repair of the Outlook data (PST) file. Let’s delve into the methods in the section below:

  1. Manual method: Using Inbox Repair tool in Outlook: The steps and sub-steps to repair PST file through Scanpst.exe are as follows:

Step 1: Locate the default PST file that is using the Outlook profile.

  • Go to Control Panel and open the Mail
  • Click on the Show Profiles Choose the Outlook profile that experiences the issue, and then click on the Properties tab.
  • Click on the Data Files
  • Note the location of the default PST file.

Note – The name of the default PST file comprises a black circle with a check mark.

fix outlook pst

Step 2: Execute SCANPST.exe file or the Inbox Repair Tool in Outlook

  • Close Outlook email client.
  • Open exe (Outlook Inbox Repair Tool).
  • Enter the location of the PST file in the Enter the name of the file you want to scan
  • Click on the Start

Note – It is necessary to know the location of Inbox Repair Tool in Outlook.

  • Location of Inbox Repair Tool:

 In Outlook 2019/Office 365

  • Click to Run or Windows version : C:\Program Files (x86)\Microsoft Office\root\Office19

In Outlook 2016/Office 365

  • Windows (32-bit version): C:\Program Files\Microsoft Office\Office16
  • Windows (64-bit version): C:\Program Files (x86)\Microsoft Office\Office16
  • Windows (64-bit version): C:\Program Files\Microsoft Office\Office16
  • Click-to-Run: C:\Program Files\Microsoft Office\root\office16

In Outlook 2013

  • Windows (32-bit version): C:\Program Files\Microsoft Office\Office15\
  • Windows (64-bit version): C:\Program Files (x86)\Microsoft Office\Office15\
  • Outlook (64-bit): C:\Program Files\Microsoft Office\Office15\

In Outlook 2010

  • Windows (32-bit version): C:\Program Files\Microsoft Office\Office14\
  • Windows (64-bit version): C:\Program Files (x86)\Microsoft Office\Office14\
  • Outlook (64-bit): C:\Program Files\Microsoft Office\Office14\

In Outlook 2007

  • Windows (32-bit version): C:\Program Files\Microsoft Office\Office12\
  • Windows (64-bit version): C:\Program Files (x86)\Microsoft Office\Office12\

Know it’s advantages

  1. Free-of-cost as Inbox Repair Tool is a built-in utility

Know it’s disadvantages

  1. Lengthy process
  2. Consumes a lot of time
  3. Requires technical expertise
  4. Not successful in every attempt

Method 2: If the method (using Scanpst.exe) that has been described above does not repair the damaged PST file (does not fix the error) you can execute the following steps:

  • Try to create a new Unicode Outlook PST file.
  • Set the newly created file as default.
  • Import data from old PST file.

Know it’s advantages

  1. Available at zero cost

Know it’s disadvantages

  1. Long process
  2. Consumes a lot of time
  3. Demands expertise in the field

Method 3:  By using PST Repair software

To repair Outlook PST file, get hold of a suitable PST Recovery software that can be reused a number of times to repair corrupt Personal Folder. With this, you will be able to fix Outlook error 0x80040600. However, for this, you as an Outlook user would have to choose one from a plethora of software that is devised and made available in the online space.
Free Download

One–stop solution to repair damaged PST file

Well, the one-stop solution to repair damaged PST file of Outlook is Stellar Repair for Outlook software. It is a sure-shot way that can be used by Outlook users who face this or any other error while working with Outlook email client. After repairing the damaged PST file, it recovers all data items, from Email messages, Contacts, Calendar, Tasks, to Journals. Once restored, the data can be imported into Outlook easily with Import & Export wizard.

Summing Up

Use the above-suggested software to make the repair of PST file as easy as ABC and excel every time in doing so, which the manual methods do not guarantee!

  1. Maya August 24, 2019
  2. Abhi August 28, 2017
    • Eric Simson August 28, 2017
  3. Shane August 21, 2017

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