
If you have time then you can try this method first and see if it resolves the problem. Sometimes the tool can successfully repair your PST but more often that not the problem will remain or reappear. One solution recommended by Microsoft is to repair your PST file but we’ve found limited success with this method.

You may also find that attempting to delete the files causes Outlook to freeze immediately. It’s unclear exactly what causes the corruption but it is usually related to one or more emails getting stuck in your Outbox folder and refusing to send.

This file is used as a database where all of your emails are stored and usually resides in your My Documents folder inside a sub directory called My Outlook Files. This problem is typically caused by a corrupt PST file. The problem usually occurs with POP or IMAP email accounts only. Once restarted the client freezes again and the cycle continues indefinitely preventing you from accessing your emails. Whilst trying to send an email your Microsoft Outlook 2003/2007/2010/2013 email client will suddenly stop responding and will ask you to restart the client. We’ve seen this problem crop up quite a lot over the last 12 months so I though I would post the fix today so read on if your Outlook email client has suddenly started freezing and/or constantly restarting… What is the problem? Microsoft Outlook Not Responding with Unsent Msgs in Outbox
