Extra folders in Outlook 1010

Since reinstalling Outlook 2010 after crash I seem to have some folders I don't know the purpose for. Sometimes a sent email will go into the Outlook Data File folder and sometimes into the robert808 folder where it should go. The Favorites folder has the same sent emails as the Outlook Data File. Seems to be no rhyme or reason to this. Anyone know why? And could I delete the Favorites, the Outlook Data File folder and the Outlook Folder without losing Outlook functionality?

The Outlook Data File folder is where Outlook stores the .pst backup info. Everything I see says that is the default PST File created with outlook. You cannot remove it unless you have a different mail delivery location. You can remove this from the navigation pane, but I don't think you want to remove it all together.

Remove Outlook 2010 Data File from Navigation Pane

Click on Start

Control Panel

Mail

Data Files

Highlight the email you want to be Default and click “Set As Default” from the menu.

Highlight the Outlook Data File and click “Remove” from the menu

The Outlook Data file will not be removed until you close Control Panel, open Outlook and select “Outlet Data File” in the Navigation pane, right click and click on “Close Outlook Data File”. Then it will go away.......

Remove Outlook Data File Folder from Navigation Pane? - Microsoft Community

A Guy

I don't use Outlook myself, but I saw plenty of people with multiple folders. Either using multiple accounts, or after restoring a PST file. Hopefully someone with personal experience will reply. A Guy