How to Fix Outlook an Unknown Error Has Occurred 0x80040600

Amy Dennis

Oct 13, 2020 • Filed to: Recover & Repair Emails • Proven solutions

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Is your Outlook reporting an error 0x80040600? Often while sending and receiving email messages, a user gets Outlook error 0x80040600 on their computer. When it occurs, it prevents you from accessing Outlook files and folders.

If you are also in the same situation, do not worry. This article will guide you on the different ways that can solve this problem. You will also understand the various reasons that can cause this issue.

Read on to understand the detailed steps for fixing the issue.

Part 1: Why do you receive Outlook error 0x80040600?

Outlook unknown error 0x80040600 is severe and can even lead to loss of your important data. But why this error occurs? Here are the possible reasons:

• Corrupted PST file
• PST file with full or no space
• Software failure
• Improper shutdown of Outlook
• Virus attack
• Power failure
• Disk damage

These are some of the possible causes that can cause Outlook 2007 error 0x80040600. Whatever be the reason, you can fix it quickly with the methods discussed in the next part.

Part 2: Methods to Resolve: "An Unknown Error Has Occurred 0x80040600"

Your PST file is the primary reason for the occurrence of Outlook error 0x80040600. PST (Personal Storage Table) is the database of your Microsoft Outlook. It stores numerous data types, like calendar entries, notes, email messages, contacts, tasks, and others. So, when you come across the error 0x80040600, repair it with the below methods:

Method 1: Repair Outlook PST with Inbox Repair Tool

The built-in utility – Inbox Repair tool (ScanPST.exe ) by Microsoft is the free tool that helps you solve the error. If the corruption level is minor, then it is highly beneficial for you. Use the tool and repair error with the below-mentioned steps:

Step 1 – Run ScanPST.exe

Open the Outlook installation folder and search the ScanPST.exe file in the Outlook installation folder. Launch it to proceed with the repair process.

Step 2 – Select file and click repair

Browse to select the file that needs repair. After the selection of the file, click on the "Repair" to allow the repair tool to begin the process.

When the process completes, you can relaunch your Outlook and check if the error persists or is it resolved.

Note: When you run the Inbox Repair tool, your Outlook must be in a closed state at that time.

Method 2: Create a new Outlook PST file

If the corruption is severe and the Inbox Repair Tool fails to fix it, then you can create a new PST file. Creating a new PST is not a complicated task. Follow the below steps to make your new PST easily and quickly.

Step 1: Open Outlook and Reach Outlook Data Files

Step 2: Name Your New PST

Name your newly created PST file. If you want to keep your data confidential, you also get the option to add a password. Select the box in front –"Add Optional Password" to create a password-protected PST file. You can see this option below the "Save as type" label. Click OK after selecting it.

Step 3: Set Password

When you click on "OK" after selecting the option to create a password-protected file, you will be prompted to the Window to set a password. Enter your password, retype it to confirm it in the "Verify Password" box, and click on "OK."

Your new PST file is created and is visible in your Outlook.

Method 3: By using PST Repair software

Stellar PST repair software is the best tool to fix the Outlook error 0x80040600. It not only repairs your broken, damaged, or corrupted PST file, but also recover all the data of your mailbox. The advanced software comes with easy to use GUI that can quickly fix even the severely corrupted files.

Use the Stellar PST repair software to repair and restore your PST file with these steps:

Step 1: Add PST file

When you launch the "Stellar PST Repair" software, you will come across two options at the main interface – "Browse" and "Find." If you are sure about the location of the file, you can click on the "Browse" option. But if you are not sure, then you can click on the "Find" to search for your needed file. Once you have made the selection, begin the process after clicking on the repair button.

Step 2: Repair the PST file

The moment you click on the "Repair" button, the repair process begins. You can see the progress on the bar displaying the growth of the ongoing process. However, if you want to stop the repair process in-between, click on the "Stop" button. It will immediately stop the scan.

The process completes depending on the severity of the PST file corruption and its size.

Step 3: Preview and save

Once the software completes the repair, you need to ensure that the right file is repaired and is fixed wholly and correctly. The software gives you the facility to view the repaired file. You can see it from the side panel. Just double-click the file and preview it.

If you are satisfied with the recovery, save the file by allocating it to the desired location.

With this step, your PST file repair and recovery is complete. Now you can access your Outlook without experiencing any trouble or unknown error.

Part 3: Tips To Prevent Error 0x80040600

Here are the working tips that can help you in preventing the occurrence of the Outlook error 0x80040600:

• Always use authenticated software.
• Regularly check for any antivirus program updates.
• Do not close the application abruptly.
• If you suspect any corruption in your PST file, instantly look for the remedy.
• Do not limit the storage by keeping unnecessary data and emails.
• Take regular backup of your PST files that can prove beneficial during file recovery or version upgrade.
• Do not shut down your system abruptly, close your Outlook and other programs before you shut down your computer.
• If your installed version gives you the facility to modify the size of the PST file, then it would be better if you do it. But if you do not have this facility, try not to exceed the limit above 2GB.

The Bottom Line

We have discussed various causes leading to Outlook error 0x80040600. You have also learned the numerous tips that can help in preventing the occurrence of this error. However, after taking all the preventive measures, if you are still getting the error, then the methods discussed in this article will assist you in resolving the error.

Stellar Outlook Repair is the best tool of all that can repair your PST file and help you in getting rid of the error 0x80040600. Irrespective of the corruption severity and file size, the powerful software can repair and fix all. Try using it to fix the error.