Windows in Taskbar
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\ms project\options\view Value name: show windows in taskbar
Enabled: show windows in taskbar = 1
Disabled: show windows in taskbar = 0
Description
Specifies whether separate windows are opened and displayed as separate buttons on the Windows taskbar for every open project. If you enable this setting, a new window is displayed in the taskbar for each open project. If you disable or do not configure this setting, the user's default setting is used.