Www.Office.com/myaccount – If you are running programs on Windows or comparable operating systems it is possible that the program might encounter an unexpected issue. It will then trigger an exception, which lets the program to run without issue even if when something goes wrong. However, if the program creates unidentified or unexpected errors, Fatal Error can result. Fatal error refers to an error which can make the computer program or entire operating system to stop functioning in a flash. Fortunately, a less severe fatal error is one that will result in a single program being close down.