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on January 13, 2026
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You need to configure your OneDrive to not back up the directory where your Outlook data file resides. 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. To fix Outlook data files that cannot be opened, recreate your Outlook profile, repair the file using the Inbox Repair Tool (scanpst.exe), or check for permission issues.
How to fix Outlook Data File cannot be accessed on Windows 11?
It can recover all the mailbox items from 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 use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape.
Step 6: Repair the Corrupted Outlook Data File (PST)
To make sure this is not the case, try opening Outlook and see if it found the data file. If you moved your data file or its location changed somehow, Outlook might not be able to find it. I successfully moved my Outlook PST files onto my new computer. The issue I got caught on relates to the required steps in Outlook to switch files.
Error 0x8004010F when you try to send or receive email in Outlook 2010 or Outlook 2013
That is the file Outlook uses to cache your mail on the system. If this diagnostic step works and fixes the error, disabling your add-ins should help prevent it click through the up coming article from happening again. Before you change any settings or troubleshoot further, use these steps to check your connectivity and settings, and try restarting Outlook and your computer.
Step 2 - Create a new Outlook profile
To resolve Outlook data file errors, repair the file using scanpst.exe, recreate the profile, or reset the file path. Verify account settings, ensure Outlook is updated, and disable interfering antivirus programs. For severe corruption, consider using professional repair tools. It never feels great to run into an error message, especially if you’re in the middle of an important task.
This will result in one copy in the folder in OneDrive being used for backup purposes, and another copy in your Outlook client that solve Office 365 mailbox sync delays can be kept open by Outlook.
Anyone else getting "Outlook Data file cannot be accessed" error/ issue with O365?
Ensure the file isn't corrupt and try opening it in a new profile to resolve the issue. One of the major reasons for the "Outlook data file cannot be accessed" error is corruption in the Outlook data file (PST). You can repair the corrupted PST file using the built-in Inbox Repair tool (also known as SCANPST) in Outlook. 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.
The manual solution has lots of limitations and also contains a very lengthy process.For severe corruption, consider using professional repair tools.By default, the Outlook data file resides in your local user's "Documents" folder.It can also allow saving the recovered PST data to other file formats, like MSG, EML, HTML, RTF, and PDF.
This is a good solution if you think your data file might FixTechGuide Office 365 troubleshooting be corrupted. 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. The error message indicates corruption in the Outlook data (PST) file.