The command line argument is not valid. Verify the switch you are using. – Huh? (Outlook)

The command line argument is not valid. Verify the switch you are using. – Huh? (Outlook)

Did you launch Microsoft Outlook and receive a random pop-up message? In most cases, you click OK and the message disappears. In other cases, Outlook will not open.

 

  1. Try repairing Microsoft Outlook. Go to Start -> Control Panel -> Programs and Features find your installation of Microsoft Office, right-click -> Change and then select Repair.
 
  1. If repairing Microsoft Outlook does not work, open Outlook in safe mode. Open Windows command prompt and type:





 

Outlook /safe

 

  1. Use Microsoft Inbox Repair tool. In a command prompt, type the following:
 

C:\Program Files\Microsoft Office\root\Office16

Or

C:\Program Files (x86)\Microsoft Office\root\Office16

 
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Saturday, 04 February 2023