Let me fix it myself

The Inbox Repair tool is automatically installed with all English-language Microsoft Outlook installation options depending on your operating system.

For Microsoft Windows NT and Microsoft Windows 2000:

For Microsoft Windows 95 and Microsoft Windows 98:

The Inbox Repair Tool installs automatically during Microsoft Outlook 2002 and Microsoft Office Outlook 2003 setup. Unlike the Microsoft Office 97 version of the tool, Microsoft Office 2000 does not place the Inbox Repair tool on a menu. To use the Inbox Repair tool, locate one of the folders by using Microsoft Windows Explorer, and then double-click the Scanpst.exe file.

The Scanpst.exe file is typically located in one of the following folders:

The Scanpst.exe file for Outlook 2007 is is typically located in the following folder:

The Scanpst.exe file for Outlook 2010 is typically located in the following folder:

To run the Inbox Repair Tool, follow these steps:

1. Click Start, and then point to Find or to Search, depending upon your operating system.
2. In the Search for files or folders named box, type scanpst.exe
   Note If you cannot find the Scanpst.exe file in the Search box, try to locate the file manually.
3. Double click the Scanpst.exe file to open the Inbox Repair Tool.
4. Type the path and the file name of the personal folders (.pst) file or click Browse to locate the file by using the Windows file system.
5. Click Start.

Full article can be found here