Outlook error 0x8004010F: Cannot access the data file

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In case you get error 0x8004010F while sending/receiving mail in Outlook 2010/2013/2016, this article should help you to solve the problem. Generally, the presence of 0x8004010F error indicates a corrupt Outlook profile, or can occur when trying to access a moved PST file.

0x8004010F: Cannot access the Outlook data file.
0x8004010F: Operation failure. Object not found

The official MS Knowledge Base article (2659085) recommends recreating the entire Outlook profile in this situation, but this solution is not very useful, especially when there are multiple mailboxes in the Outlook configuration (you will have to reconnect all the mailboxes and recall passwords for them).

Fortunately, there is a simpler solution, which is to create a temporary pst file and switch the delivery to it, and then you will need to return the previous delivery file. The method applies to both Outlook 2010 / 2013 and Outlook 2016 / 365. Now for more details on how to do it:

Note. This solution will not fix the error if you are using an Outlook profile connected to the Exchange mail server via MAPI/ MAPI over HTTP.

  1. Open the Account Settings window by clicking File-> Account Settings -> Account Settings

2. Select an email account and click Change Folder

3. Create a new temporary Outlook Data File in which you create an arbitrary folder (in my case, the Inbox was created automatically). Select the folder and click OK.

4. Now, Outlook uses the folder you just created as the message delivery folder. Now you need to switch to the original Inbox folder in the original file. This is done in the same way with the Change Folder button.

5. Close the account settings and click Send/Receive. Error 0x8004010F should disappear.

Note: Tip. Do not forget to manually delete the temporary pst file on the disk, because deleting the pst file from the Outlook configuration does not delete it on the disk.

In case the method described above does not help, check the NTFS permissions of the pst file. If there are no problems here too, you will have to recreate the profile and reconnect the old PST files.