Forum Discussion
Solved
Cannot launch Outlook 365 offline - "the set of folders cannot be opened"
Windows 10 21H2 (OS Build 19044.1706) Office 365 2204 (Build 15128.20178) I'm unable to launch Outlook 365 offline. I get the error: "Cannot start Microsoft Outlook. Cannot open the Outlook wind...
- Found a fix! Set created key in HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover
DWORD ExcludeExplicitO365Endpoint = 1
Now I can start offline. As a bonus, Outlook also launches much faster.
Please how did you do this?
Instructions at https://medium.com/jj365/outlook-issue-with-direct-connect-to-office365-352dd29de65