Outlook 2010 won’t open attachments, right click nothing happens, double click nothing happens

While on customer site today I got involved in a small support issue with attachments not opening in Outlook 2010. Right clicking on attachments did nothing, double clicking on attachments did nothing.

Firstly I looked in the event viewer and saw nothing related to any office errors.
Secondly, I ran a repair installation of office 2010 and soon after the issue reoccurred.
Thirdly, I tested further by attaching a plain text file to an email and sent it to themselves with the same result – nothing would open.

The only thing sitting between Outlook and the registered application for opening that file type was the Anti-Virus program.

This particular antivirus program didn’t offer a repair option in control panel so I uninstalled and reinstalled it and got them to retest – issue solved.

The hook between outlook and the antivirus must have encountered an issue and the only want to fix is was the uninstall/reinstall.

Hope this helps someone else, there wasn’t much on the web about it.


Senior consultant and company director at The Full Circle. Passionate about automation scripting, end user experience and cloud technology.