Just select any add-in of your choice and click on the "Remove" button to disable it. I tried using the repair process (SCANPST.EXE) which appeared to detect issues but also appeared to complete a successful repair, but the issue persists. Afterward, you can try to relaunch the Outlook application and access the saved OST file without any trouble. If this diagnostic step works and fixes the error, disabling your add-ins should help prevent it from happening again. If you think a third-party add-in might be causing the error, try starting Outlook in Safe mode without any add-ins or extensions loaded to see if it works. Creating new Outlook profile or rebooting the computer fixes the issue.

Step 6: Repair the Corrupted Outlook Data File (PST)

This might happen due to a power failure or improper shutdown, hardware issues, or viruses and malware. MS Outlook stores all the information related to your email account both online and in a local file on your computer. That way, you can access previously downloaded or synchronized messages, as well as calendar information, contacts, and tasks even when you’re offline. More often than not, it’s caused by either a corrupted Outlook profile or a change in the data file’s location. And though an error message might look worrying, you may be able to fix the problem.



On the righthand side of the window, choose the button to \"manage backup\". In that window, ensure the \"Documents\" folder is not enabled to sync to OneDrive. Then, in the next window, make sure how to fix Outlook not opening today you're on the tab marked "Sync and backup". On the righthand side of the window, choose the button to "manage backup". In that window, ensure the "Documents" folder is not enabled to sync to OneDrive.

• Just like other installed applications in Windows, Outlook also supports a compatibility mode.
• In this post, I will let you know what to do if the Outlook data file cannot be accessed on your system.
• You will need to follow the manual steps in order to create a POP3 account.
• The Lost and Found folder contains any folders and items recovered by the repair tool that Outlook can't place in their original structure.
• It is not possible for Outlook and OneDrive to both try to access the data file at the same time.
• When you restart Outlook, all the temporary files are removed and related processes and services are automatically cleared.
• It can also allow saving the recovered PST data to other file formats, like MSG, EML, HTML, RTF, and PDF.

Error 0x8004010F when you try to send or receive email in Outlook 2010 or Outlook 2013

In the Folder Pane, you might see a folder named Recovered Personal Folders that contains your default Outlook folders or a Lost and Found folder. Although the repair process might recreate some of the folders, they may be empty. The Lost and Found folder contains any folders and items recovered by the repair tool that Outlook can't place in their original structure. I’m sure that after reading this post, you would be able to resolve the Outlook data file cannot be accessed issue. Whenever Outlook cannot access an OST file, I usually disable any firewall or get rid of unwanted plugins. Besides that, if you also cannot access OST files in Outlook, then you can try to repair it or simply convert it to a PST format.

Fixing 'Outlook Data File Cannot Be Accessed' Error on PC

It is not possible for Outlook and OneDrive to both try to access the data file at the same time. By default, the Outlook data file resides in your local user's \"Documents\" folder. So you'll want to make sure OneDrive is not syncing that folder. By default, the Outlook data file resides in your local user's "Documents" folder.

How to fix Outlook Data File cannot be accessed on Windows 11?

This could happen if, for example, OneDrive backs up your Documents folder to the cloud and includes the Outlook Files folder where the file is located. During the syncing process, OneDrive locks the file, which prevents Outlook from accessing it, resulting in the "Outlook data file cannot be opened" error. This is a good solution if you think your data file might be corrupted. Another reason for the Outlook data file cannot be accessed issue can be related to a corrupt application. In this case, you can simply run a Windows troubleshooter to fix the installed Outlook application. When you restart Outlook, all the temporary files are removed and related processes and services are automatically cleared.



Sadly, if the mode has been enabled, then it can cause issues with the accessibility of the saved OST file. If you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't. Therefore, if you cannot access an resolve Outlook not sending emails fast OST file in Outlook, then you can browse to the location of the Outlook.exe file.



Though, if Outlook cannot access the OST file or if it has been corrupted, then you can encounter unwanted problems. In this post, I will let you know what to do if the Outlook data file cannot be accessed on your system. It can recover all the mailbox items from guide to Office 365 sign-in errors the corrupted file and save them to a new PST file, which you can import into your Outlook profile. It can also allow saving the recovered PST data to other file formats, like MSG, EML, HTML, RTF, and PDF. It even comes with features like auto-split to split large PST files and export the PST contents directly to Microsoft 365. You can create a new Outlook Data File and drag the items in the Lost and Found folder into the new data file.

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To do this, you can take the assistance of Stellar OST to PST converter. Now, in the Outlook Options window, just go to the "Manage" section, and select "COM Add-in" from the list. This will display a list of the installed add-ins, letting you uninstall any plugin from Outlook.