If you create folders to organize your messages in Outlook.com, you might not need those folders after a while. If you no longer need a folder, delete it.
The instructions in this article apply to Outlook on the web at Outlook.com.
Delete a folder in Outlook on the web at Outlook.com
Any folder you create in Outlook can be deleted when you no longer need it. The exception is that default folders such as Drafts, Inbox, and Sent Mail cannot be deleted. When you delete a folder, the e-mail messages it contains are also deleted.
If you don’t see the folder you want to delete, make sure the folders aren’t collapsed. To view collapsed folders, select the arrow next to dossiers.
Right-click the folder you want to delete.
Choose Delete folder.
In which Delete folder Select in the dialog box OK.
Recover deleted folder
If you accidentally delete a folder, restore it. Permanently deleted folders cannot be recovered.
In which dossiers choose points removed.
Choose the folder you want to restore.
You may need to tap the arrow next to points removed to expand the folder and view the deleted folder.
Drag the folder to the dossiers Listing.
Automatically empty your deleted items folder
Outlook.com can automatically purge your deleted items each time you sign out. This will permanently erase the folders and email messages you deleted.
In the upper-right corner of the Outlook window, select the settings gear icon.
Choose Show all Outlook settings.
In which settings Select in the dialog box E-mail.
Choose message processing.
Choose Empty the Deleted Items folder. check box.
Choose To protect.
close settings as soon as you are done.