Fix Outlook Error 0x8004010f – Guide for All

Updated On - September 6, 2023 by Nasir Khan |

Reading Time: 7 minutes

Outlook error 0x8004010f is one of the error messages that might make a user of Outlook feel upset. It’s common when using Outlook 2010 and 2013 to send and receive emails. What’s the meaning? It says, “Outlook data file can’t be opened.” You might also wonder why this is happening and how to fix it immediately. This article will help you figure out why you’re getting the error.

What Can Cause Outlook Error 0x8004010f?

When you use MS Outlook, all your mailbox data is stored locally on the Offline Storage Table (OST) file. The OST file acts as a copy of the user’s Exchange mailbox because it saves all of the account’s records that are stored on the server on the local computer.

The main job of the OST is clear when the Exchange server is down because of technical problems or maintenance. If this happens, an Outlook user can keep working with the OST file locally, and once the Exchange server is up and running, changes to the account can be synchronized with the Exchange account.

The Outlook 0x8004010f error, “Outlook data file cannot be accessed,” will show up on the screen when a user can’t access the OST file because Outlook and the Exchange server haven’t been synchronized properly. Here are the most important reasons for the mistake:

• Error while sending or receiving emails: This error can occur when there is an issue with the network connection or incorrect email account settings. To fix this, you can try checking the network connection, repairing Outlook data files, or creating a new Outlook profile.
• Error while synchronizing Offline Address Book: This error can occur when the Offline Address Book becomes corrupt or the synchronization process is interrupted. To fix this, you can try restarting the synchronization process, clearing the Offline Address Book cache, or recreating the Offline Address Book.
• Error while updating or installing Outlook: This error can occur due to a problem with the Outlook installation files, Windows Registry, or conflicting software. To fix this, you can try reinstalling Microsoft Office Suite, checking for Windows Registry errors, or disabling antivirus software temporarily.

Now, let’s talk about how to fix error 0x8004010f.

5 Verified solution to Fix Outlook Error 0x8004010f

Several things can be done to fix the error Outlook Data File Cannot Be Accessed.

Solution 1: Create a new profile in Outlook

If a corrupted Outlook profile causes the error, you can fix it by creating a new profile. Find your default Outlook or OST file and set up a new profile to do this.

To set up a new profile, you need to do three things.

Step 1: Find the file that Outlook uses by default.

• Go to Control Panel and then click on Mail.
• Click “Mail Setup – Outlook,” which will open a dialogue box. Click “Show Profiles” next.
• Pick your current Outlook profile and click “Properties.”
• The “Mail Setup – Outlook” dialogue box will appear again. Click on “Data Files” next.
• A box called “Account Settings” will pop up. Click on Data Files and note what your default Outlook profile is called and where it is. The default profile will have a checkmark next to it.
• Click “Close” to leave.

Step 2: Set up a new profile in Outlook

Set up an IMAP or POP3 email account Automatically.

• Firstly, go to the Control Panel.
• Click “Show Profiles” when the “Mail Setup – Outlook” dialogue box opens.
• Select your current Outlook profile and click “Add” to continue.
• Give your new profile a name you like in the “New Profile dialogue box,” and click “OK.”
• A box called “Add New Account” will show up. Type in your email address and click Next.
• Once you’re done setting up, click the “Finish” button.

Setup an IMAP or POP3 email account by manually

• Firstly, go to the Control Panel.
• Click “Show Profiles” when the “Mail Setup – Outlook” dialogue box opens.
• Select your current Outlook profile and click “Add” to continue.
• Type a name you like for your new profile in the “New Profile” box, then click “OK.”
• A box called “Add New Account” will appear. Choose “Manually configure server settings or additional server types” and click “Next.”
• The “Choose Service” box will show up. Click Next after choosing Internet Email.
• A box with the title “Internet Email settings” will appear. Input your email account details
• Next, click “Test Account Settings” to see if your account is set up right.
• Following, pick “Existing Outlook Data File” and click “Browse.”
• The “Open Outlook Data File” dialogue box will open next. Find the Outlook data file you found earlier and click on it.
• Next, you must click OK, Next, Close, and Finish simultaneously.
• Lastly, now that your new profile has been made, you can move on.

Step 3: Set the new Outlook profile to be the default one

• At first, navigate to Control Panel
• A box with the title “Mail Setup – Outlook” appears. Click Profiles to View.
• Choose “Always use this profile” and then choose the new profile from the drop-down menu that appears.
• Press OK.

Solution 2: Locate and install the Outlook data file

Follow the steps below to find and install the Outlook data file;

• Go to Control Panel and then click on Mail.
• Secondly, click “Mail Setup – Outlook,” which will open a dialogue box. Click “Show Profiles” next.
• Pick your current Outlook profile and click “Properties.”
• The “Mail Setup – Outlook” dialogue box will appear again. Click on “Data Files” next.
• A box called “Account Settings” will pop up. Click on Data Files and note what your default Outlook profile is called and where it is. The default profile will have a checkmark next to it.
• At last, click “Close” to leave.

Solution 3: Turn off your antivirus software

Outlook error 0x8004010f and antivirus software often need to get along. To turn off your antivirus software, right-click the taskbar and choose “Task Manager” from the menu. This will remove it from the system startup.

Next, choose your antivirus software and click the “Disable” button. Restart Windows and try to send an email from Outlook.

Solution 4: Turn off the “Windows Defender Firewall”

It could be because of your “Windows Defender Firewall.” Press the Windows+S key on your keyboard to ensure it is not getting in the way of Outlook. Then type “Firewall” into the search box to open “Windows Defender Firewall.”

With the next click, the Windows Defender Firewall on the left side of the control panel windows is turned off. Turn off both radio buttons next to Windows Defender Firewall to turn off WDF, and then click the “OK” button to close the window.

The problem has been fixed, so you can once again use Outlook to send and receive messages.

Solution 5: Professional tool to fix OST file

If none of the above solutions work, you should use Regain OST file recovery tool to fix the problem. It is a powerful piece of software that fixes Outlook errors.

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• Fix damage PST and OST files in Outlook in all cases of email corruption, such as when a hard drive crash, has bad sectors, virus or Trojan horse attacks and when Outlook gets corrupt or doesn’t work right, or when you don’t shut down properly, etc.
• Get back Outlook emails that have been deleted for a long time and extract the email messages, folders, calendars, etc., in seconds.
• Fix outlook error 0x8004010f in MS Outlook 2016, 2013, 2010, 2007, 2003, 2002 (XP), and 2000.
• You can always get back Outlook emails that have been deleted for a long time.
• Fix emails in batches without size limits and with the ability to preview them all before saving.
• The software is also compatible with Windows 7/8/8.1/10/11, Windows Server 2012/2016/2019.

Prevention Tips to Avoid Outlook Error 0x8004010f

• Regularly Backup Outlook Data: Creating regular backups of your Outlook data can help you restore your emails, contacts, and other important information in case of a data loss or corruption.
• Keep Outlook and Windows Up-to-Date: It’s important to keep your Outlook and Windows operating system updated to ensure that you have the latest security patches, bug fixes, and performance improvements.
• Disable Add-ins in Outlook: Sometimes, third-party add-ins installed in Outlook can conflict with the software and cause the 0x8004010f error. To prevent this, you can disable unnecessary add-ins or troubleshoot specific add-ins that may be causing the problem.
• Use Reliable Antivirus Software: Installing and using reliable antivirus software can help prevent malware and other security threats that could cause Outlook data corruption and lead to the 0x8004010f error.

Conclusion

Several organizations rely on Outlook for business operations. However, users frequently face outlook error 0x8004010f. In this write-up, we’ve described possible ways to fix Outlook error 0x8004010f. Now it depends on which approach you choose; whatever you choose, choose according to ease and effectiveness.