Some Microsoft Outlook users have reported getting the Your Outlook data file cannot be configured error on their PC. This error occurs when trying to open Outlook ...

Windows 11 KB5078127 is an 'out-of-band' patch to fix an issue that broke Outlook Classic (POP, PST) after January 2026 Patch ...

Microsoft has issued guidance to uninstall KB5074109 security update or switch to webmail after the patch caused Outlook ...

Chris: After upgrading to Outlook 2007, I get a data file error every time I open Outlook. The exact error message I see is "A data file did not close properly the ...

Microsoft Outlook is a robust email client for managing emails, calendars, contacts, and tasks. However, Outlook users occasionally encounter a common and potentially disruptive issue: corruption in ...

Outlook add-ins or other programs could be preventing Outlook from closing properly. While manually ending Microsoft Outlook's process -- Outlook.exe -- using the Windows Task Manager can help close ...

Personal Storage Table or PST is a popular and most commonly used mailbox data file format for storing, backing up, and migrating mail items to and from Microsoft Outlook. However, Outlook data file ...

Several Outlook users, on different forums, have reported encountering the error “OST file cannot be opened,” when trying to open the application or sending ...

Microsoft Office Outlook maintains everything in a data file, also called PST or OST file. It is an offline copy of mailbox data stored on a local PC. In case of issues, you must delete the data file ...

Windows 11 KB5074109 causes a black screen on some PCs, including those with an Nvidia GPU, and also freezes Outlook if you ...

Correct problems with Microsoft Outlook by repairing your Microsoft Outlook Data File -- known as a PST file. If you're having problems opening or accessing your Outlook data, then you can scan your ...