Outlook won't open after installing Office 2010

  • Thread starter John with an outlook question
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John with an outlook question

When my Beta version expired I purchased and installed the home and student version. I did not uninstall prior to installing and Outlook will not open. I have un-installed the Beta now, but the licensed copy still won't open.
Do I need to reinstall the entire suite? or Outlook? or is there a fix? Will my license and product key work on a second install on the same machine?

Harry Yuan


From your description, I understand that Outlook 2010 cannot start after you installed Office 2010 Home and Business.

You ran outlook.exe /resetnavpane and it opened Outlook beta version. If there is any misunderstanding, please feel free to let me know.

Actually, to install Office 2010 RTM, we need to first uninstall the beta version. To uninstall it, please go to Control Panel > Add/Remove Programs (Windows XP) or Programs and Features (Windows Vista/Windows 7).

To ensure that the Office program is completely uninstall so it will not cause unexpected problems when installing the RTM version, please also click the button in this KB article to uninstall the Office program:

How do I uninstall Office 2003, Office 2007 or Office 2010 suites if I cannot uninstall it from Control Panel?


Note: Please scroll download the Office 2010 section.

Then, try to install Office 2010 RTM version again.


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