Hi everybody, today we are going to discuss how to repair and speed up Outlook. It happens to all of us you are trying to open your e-mails and Outlook is working so slow it is almost painful. Outlook works with a proprietary file system called a PST file. These files are great when they work as intended but they often can get corrupted especially when you are trying to save lots of e-mails. When a PST file gets corrupted or if you are trying to save too much e-mail, your Outlook may not open. Fortunately, Microsoft included a small utility called Scanpst.exe This utility is hidden so you have to look for it in order to run it.