When replying to an email, an Extra Outlook appears and my reply disappears

For classic Outlook on Windows, this behavior can match a known startup/display issue where Outlook is running but the window does not appear correctly on the desktop.

Try these steps in order:

1. End the stuck Outlook process.
   • Right-click the taskbar and open Task Manager.
   • On the Processes tab, look for outlook.exe.
   • If it is present, select it and choose End Process.
2. Start Outlook in Safe Mode.
   • Press Windows + R.
   • Type outlook.exe /safe and run it.
   • If Outlook opens normally in Safe Mode, the issue is likely related to an add-in.
3. Disable COM add-ins.
   • In Outlook, go to File > Options.
   • Select Add-in.
   • At the bottom, choose COM Add-in in the manage/admin dropdown, then select Go to.
   • Clear the checkboxes for suspicious add-ins and select OK.
   • Close Outlook and open it again normally.

If Outlook still behaves the same after Safe Mode and disabling add-ins, create a new Outlook profile.

• Why does Outlook not appear on the desktop while its process is running in the Task Manager?- EeeKB