Outlook.com users can use instant actions to quickly move emails to different folders with out opening or selecting the message. Instant actions also provides option to quickly Categorize, Sweep, Archive, Mark as read/unread or delete any emails messages. The default instant actions that are already pre-configured in Outlook.com are Mark as read/unread, Delete and Flag as shown below.
Now let us see how to add Junk option to the instant action list in Outlook.com.
Step 1: Click the Settings icon and select More mail settings from the list.
Step 2: Navigate to Customizing Outlook section and click Instant actions.
Step 3: In the Instant actions screen, navigate Add actions and select Junk from drop down list.
Step 4: Click the Save button to apply and confirm the changes.
Now you can use instant action quickly move any email to Junk folder.