Cannot Delete This Outlook Data File (Solved)

A few Windows users are facing the issue “You cannot delete this Outlook data file” when trying to delete the corrupted Outlook data file and deleting an account from it. This is mainly due to the corrupted .pst or .ost file or corrupted user profile account. In this article, we have different methods to solve this issue.



Method 1: End The Outlook Task

 

Step 1: Right-click on the taskbar and click on Task Manager

 

Task Manager

 

Step 2: Go to the processes tab and find Microsoft Outlook

Step 3: Right-click on Outlook and click on End task. Similarly, do it for all the entries of Outlook. This will close Outlook and then check if the issue is solved.

 

End Task

 

Method 2: Close The PST / OST Files From The Outlook

 

Step 1: Open the Outlook

Step 2: On the left side, right click on the Outlook data file (PST/ OST file)

Step 3: Then click on close “outlook data file”



 

Method 3: Delete PST / OST Files Manually

 

Step 1: Open the File explorer using Windows + E keys together

Step 2: Click on View tab

 

View

 

Step 3: Enable Hidden items by clicking on the checkbox beside it

 

Hidden Items

 

Step 4: Copy the following path and paste it in the file explorer address bar then enter

%USERPROFILE%\AppData\Local\Microsoft\Outlook

 

Path

 

Step 5: Right click on the .ost file and click on delete

 

Delete

 

Method 4: Remove The Outlook Profile

 

Step 1: Firstly close Outlook and all its traces. Open the run prompt using Windows + R keys together

Step 2: Type control in the run prompt and hit enter. This will open the control panel

Control

 

Step 3: On the right side, click on the view by drop down and select Large icons

 

Large Icons

 

Step 4: Click on the Mail (Microsoft Outlook) option

 

Mail

 

Step 5: In the opened window under Profiles section click on Show Profiles button

 

Show Profiles

 

Step 6: Select your Outlook profile which is giving the issue and click on Remove

 

Remove

 

Step 7: Click on yes in the confirmation window

Step 8: Restart the computer and check if the issue is resolved

 



Method 5: Delete Email Accounts Using Registry Editor

 

Step 1: Open the run prompt using Windows + R keys together

Step 2: Type regedit.exe in the run prompt and hit enter

 

Registry

 

Step 3: A user account control window will open, click on yes. This will open the registry editor

Step 4: Navigate to the following path in your registry editor

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows

 

Registry Path

 

Note: If you did not find this path in your system, then this method is not applicable in your case.

Step 5: Right click on the Windows Messaging Subsystem and click on Delete. This will remove all mail account data

Step 6: Restart the computer and check if the issue is solved.

That’s it! I hope this article is helpful and let us know which of the above method worked for you. Thank you!!