Using New Outlook on Windows for personal email, calendar, and contact management
Open outlook.exe from file explorer --
Outlook.exe is here - you can use Windows key + R to open the Run command and paste the path, including the parenthesis in the run box then press Enter.
"C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE"
if you use 32-bit Office, it is here -
"C:\Program Files (x86)\Microsoft Office\root\Office16\OUTLOOK.EXE"
Pin it to the taskbar.