cannot access email addresses at websites

After I got Norton I can lo longer access email addresses provided at websites. When I click on a link to get the email address I get a message stating:

 

Cannot start Microsoft Outlook. Cannot initialize Microsoft Office shared utilities. Please restart your computer or reinstall Microsoft Office Outlook.

 

I don't know much about computers, but I'm concerned if I reinstall Microsoft Outlook I will loose all the email I have in it. A lot of the email is for my business. Does anybody have any suggestions?