Today I finally caved: I got tired of having bug reports showing up in my searches in Outlook. I looked around and found a relatively simple way to do it.

Steps

  1. Open Outlook
  2. Select the Inbox folder
  3. Click on the View > Change View
    view
  4. Select Manage Views
    view
  5. Click New to create a new view and:
    1. Name the view: E.g. Search filter
      view
    2. Select Table type of view
      view
    3. Can be used on: All mail and Post folders
  6. Click on OK to continue
  7. Click on View > View Settings
  8. Select the Advanced tab in the Filter dialog box and:
    view
    1. Select Field
      Field
    2. Select In folder
      In folder
    3. Select Condition > Doesn't contain
      view
    4. Fill up the folder name. You will ahve to type it.
    5. Click Add to list button
  9. Click OK to close all dialogs.

Now the folders you have typed will be filtered out from searches.

Note: All subfolders are also filtered out!

HTH,