Nowadays many people use to send emails for communicating to their friends, relatives, colleagues and business clients. For easy e-mailing Microsoft Outlook is best application. So many people prefer to use Microsoft Outlook. It also provide the feature for storing data in PST file. PST file is just like database file for Outlook and store all information like e-mails, messages, contact informations, journals, important notes, schedule, calender events, etc. But Outlook PST file has some limitation like size must be under 2 GB for better performance. If you store more data than its limitation then it start working slow and after some period it may crashed. When it crashed then you are not able to use data stored in PST file you get error message like Inbox repair tool not responding. You get same message when you are working on slow internet connection. In order to solve this problem you have to use Outlook PST repair tool. It is easy to install and run, so that novice can also solve errors.