Microsoft products can often show errors that make us mad, but like any man-made software can not be 100% perfect.
One problem may be an add-in Outlook or other thing that makes Microsoft Office Outlook no longer work.
If you get an error like “Can not start Microsoft Office Outlook. Can not open the Outlook Window” solution is:
1. Click start – “Run” key.
2. After you open a small black window type:
Outlook.exe / resetnavpane
3. Click OK.
More details can be found on page http://support.microsoft.com/kb/2022778.
Problem solved .