Help to know which O/S. Take a look at the Task Manager ctrl-alt-del and see what is running or not responding. You can end that task (OE) and see if it will start again without re-booting.
A google search on "Outlook Express doesn't start" may yield some results especially if you give the O/S also.
Does anyone know why OE sometimes doesnt open up.
For example: switching identities, or clicking on icon. I usually have to restart the computer.
Does anyone know the Solution?
Thank you

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