Remove and clear all filters applied in selected folder

Step 1: Click to open the folder that you will clear filters from. In our case, we open the Inbox.
Step 2: To open the Advanced View Settings dialog box:

1. In Outlook 2010 and 2013, please click the View Settings button on the View tab;
2. In Outlook 2007, please click the View > Current View > Customize Current View.
3. Step 3: In the popping up dialog box, please click the Filter button.
   
   Step 4: Then click the Clear All button in the Filter dialog box.
   
   Step 5: Click both OK buttons in two dialog boxes.
   Then all filters applied in the opening folder is removed immediately.