

Most probably, the error is related to the oversized Personal Storage Tables or PST File. You can follow these steps to fix the ‘data file personal folder was not closed properly’ error in Outlook 2007, Step 1: Reduce the Size of PST File Thus, it can also be an issue of corruption in PST Files. As a consequence, it takes longer for users to open and access their Outlook account. Moreover, large PST files become prone to integrity issues and corruption. Thus, the first thing that you should check is the size of the Outlook data file. Over time, the size of the Outlook PST file becomes too large. In this case, Outlook is taking too long to respond. The first step is to analyze the cause of the problem.

Steps to Resolve Data file Personal Folders was not closed properly Error Though you might be one of those ardent Outlook users who empty the “ Deleted Items” folder, close all tabs, and then click the Exit button, yet, the error remains unresolved. This error may sometimes also be displayed when you try to open Outlook after rebooting the system, without closing Outlook. Outlook data file is accessed by other programs on the system.This may happen due to several reasons, such as, The error message data file personal folder was not closed properly in Outlook 2007 occurs when the Outlook PST file’s header gets damaged or corrupt. Reasons for ‘Outlook Data File was Not Closed Properly’ Error

