Upgrading to a later version of any software allows the user to access the improved features that make the application better and quicker. The process has also been found to increase overall experience of the user. The same is the case with Microsoft Outlook. On upgrading to MS Outlook 2007, the user is greeted with awe-inspiring features, that improve the working and the interface. However, it is strictly recommended that each time you opt for upgrading the application, backup your PST data file, at a safe location. This ensures hassle-free recovery, in case, upgrade results in a corrupted PST. But research shows many Outlook users do not consider this and ultimately face loss of e-mails. Retrieving e-mails in such situations is necessary and to facilitate it, there are various MS Outlook Recovery solutions available that can be used to repair and restore corrupted PST.For further clarification on the topic, let’s study the following problem. You, as a Microsoft Outlook 2003 user, upgrade to Microsoft Outlook 2007. After the upgrade is complete, you open Microsoft Outlook to check your mails and the additional features of the application. But, you find, Outlook cannot be loaded and you receive the below error message:

“A data file did not close properly the last time it was used and is being checked for problems. Performance might be affected while the check is in progress.”

It is also possible that, you may find Outlook behaves normally, except that you cannot receive or send e-mails.

Cause

The above issue can result if:

· Outlook 2007 tries to access ANSI PST. Outlook 2003 uses the ANSI formatted PST for its IMAP and HTTP accounts, while Outlook 2007 uses Unicode PST for the same accounts.

· Outlook profile or PST is damaged.

Solution

Try the the below solutions to solve the given problem:

· Change the PST file format to Unicode format used by Outlook 2007

· Recreate the corrupted Outlook profile and configure it to use the existing PST. If the issue persists, try the next step

· Repair the corrupted PST using Outlook’s Inbox Repair tool or by using a third-party Outlook Recovery Software, in case Inbox Repair Tool fails. MS Outlook Recovery software provides safe and easy PST recovery with advanced features.

Stellar Phoenix Outlook PST Repair is a complete solution for repairing and restoring corrupted PST to a new PST. Supporting MS Outlook 2007, 2003, 2002, and 2000, this Outlook Recovery Software can restore all file components like, e-mails, notes, contacts, calendar entries, etc.