Here is the full error message:
Cannot start Microsoft Office Outlook. Cannot open the Outlook window. The set of folders cannot be opened. Errors have been detected in the file.
C;\Users\Username\AppData\Local\Microsoft\Outlook\Outlook.pst. Quit Outlook and all mail-enabled applications and the use the Inbox repair tool (Scanpst.exe) to diagnose and repair errors in the file. For more information about the Inbox repair tool see Help.
Question: Where do I find the Inbox repair tool?
How do I fix this?