I’m finding I can’t open Outlook eml files. This seemed to start after I installed Google Desktop Search
The current version of the Google Desktop Search has a function that indexes the content of eml files. The problem is some people find they can’t open eml files as a consequence.
To fix this, you can disable the Google Outlook Add-In. Open Outlook, click the Tools menu and select Options. In the Options click Other.
In the Other box, click the Advanced Options button and then Add-in Manager button that appears towards the bottom of the box. Take the tick off the Google Desktop Search Outlook Addin. Click Apply and exit out of the boxes.