Click on the Worklist tab.
Click on the Folders tab.
Find folder in list.
Click on delete button 
.
Click on the Worklist tab.
Click on the Folders tab.
Find folder in list.
Click on delete button .
To delete a folder and all its contents, go to the Folders page, find the folder you want to remove, and click on the delete button, . Click on Delete when prompted for confirmation.
If a study exists in a folder when a user or the system purges it from the worklist, the affect on the folder depends on the study type. If the folder contains a copy, the original is purged from the worklist and the copy remains in the folder until the user explicitly removes it. If the folder contains a copy, the shortcut is removed from the folder.