1. First open the msn browser, select the "Tools" menu, and select "Delete Browsing History" in the pop-up drop-down list.

2. Secondly, a "Delete Browsing History" dialog box will pop up. Select the item to delete in the dialog box, and then click the Delete button.

3. Finally, after the successful deletion, a text prompt will appear at the bottom of the browser, indicating that the selected history has been successfully deleted.