Some people just don't like the RSS feature in Outlook.

If you use Outlook on more than one machine you will find that you get duplicate downloads of the same RSS feed, this is very very annoying!

Fortunately you can disable the RSS capability using group policy. While group policy is considered by many to be a ‘corporate’ feature, anyone can change their local group policy, or simply edit the registry.

Create the following key if it does not exist and restart Outlook:

DWORD: Disable
Value: 1

This turns off the RSS capability but does not remove the RSS folder from your message store. Personal folders created after you enable this registry value will not include the RSS folder; however, you will not be able to delete existing RSS folders using the Outlook UI. You’ll need to use a MAPI editor, such as Exchange Server MAPI Editor or Outlook Spy, to delete the folder.