Using Classic Outlook on Windows for personal email, calendar, and contact management
In Classic Outlook for Windows, select the folder, press Ctrl+A to select every email in it, and then press Ctrl+Q to mark them all as read.
Steps
- In the folder pane, open the folder containing the unread emails, such as Inbox.
- Click any email in the message list.
- Press Ctrl+A to select all messages in that folder.
- Either:
- Press Ctrl+Q, or
- Right-click the selected messages and choose Mark as Read.
Outlook performs this one folder at a time, so repeat these steps for any other folders you want to clear. Microsoft documents both the folder-wide procedure and the Ctrl+Q shortcut.^1^
References