Outlook cannot start
Cannot start Microsoft Office Outlook. Cannot open the Outlook window.
I ran Microsoft Office Diagnostics (which usually can fix these kinds of issues — it’s under Start > All Programs > Microsoft Office > Office Tools), and it found no problems and didn’t fix the issue.
A little Googling turned up this nugget, which did the trick:
Click on Start > Run, then enter “outlook.exe /resetnavpane” and click OK.
Life is good!