Office 365 Duplicate Email Issue

Description:

Users who have Office 365 will have duplicate emails if they use a POP account.

To Resolve:

1. First, disable Office updates. Inside Outlook, go to File => Office Account => Update Options (dropdown) => Disable Updates.

2. Close out of all Office applications that are open.

3. Now open an elevated command prompt (Search => cmd => CTRL+SHIFT+Enter) and run the following:

   C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe /update user updatetoversion=16.0.6366.2068
   

   • This reverts you to the February build, you will need to re-enable updates in the future once MS comes up with a fix for this.

References:

“Outlook 2016: POP3 duplicates after installing the February 16 Update”