I personally don’t like my emails to be grouped in Outlook. So when I upgraded to Outlook 2010, I couldn’t find the option to remove in the same way as previous versions of Outlook.
However, after some digging around, I found the solution and thought I’ll share this with you:
Here is what it looks like by default:
To change this, in Outlook 2010, click on “View” at the top, then “View Settings” button
Now click on the [Group By] button
Remove tick from “Automatically group according to arrangement” tick box and under “Group items by” field, select “None“
Once you’ve done that, you’ll now see emails are no longer grouped by a view