How to open replies and forwards in a new window

Outlook 365 2016
By default, if Reading pane is opened, Outlook opens replies and forwards in the same window, but you can fix this behavior and open them in a new window.
Replies and Forwards in the same window Outlook 2013

To open replies and forwards in the new window, follow the next steps:

   1.   On the File tab, click the Options button:

Outlook 2013 options

   2.   In the Outlook Options dialog box, on the Mail tab, under Replies and Forwards, check Open replies and forwards in a new window:

Mail options Outlook 2013

   3.   Click OK:

Replies and Forwards in a new window Outlook 2013

If you have any questions or suggestions, please feel free to ask OfficeToolTips team.