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[bobbyBB]

I cannot open my Outlook 2013. If I try to open it I get "Cannot start Microsoft Outlook. Unable to open Outlook window" error
Anybody knows the solution to the my problem?

[Presto]

First, explain your problem with more detail. You're only going to get smart-ass remarks with the (lack of) information you've provided.

[lilaznviper]

did you reboot?

[jjson]

Not trying to be a smart-ass, but did you try restarting your computer and then opening up Outlook again?

[swiftshift]

Originally Posted by lilaznviper

did you reboot?

[Dragon-88]

If its corrupted, try a repair

https://kb.wisc.edu/helpdesk/page.php?id=9344

[boobyy]

In most cases it is the corrupted Navigation Pane settings file that prevents Outlook from starting successfully, so the first thing you need to do is to mend it.
Outlook Email Connection Error - Web Browsers and Email