Hi,
Initially, my co-worker is getting an error message about ..Cannot Start Microsoft Outlook. Cannot Open the Outlook window. The set of folders cannot be opened. The attempt to log on to Microsoft Exchange failed. Lot of things were done like:
https://support.microsoft.com/en-us/office/i-can-t-start-microsoft-outlook-or-receive-the-error-cannot-start-microsoft-office-outlook-cannot-open-the-outlook-window-d1f69da6-b333-4650-97bf-4d77bd7abb85#:~:text=add%2Din%20installed.-,Start%20Outlook%20in%20safe%20mode,your%20password%20and%20choose%20Accept.
or this list:
1. Start Outlook in Safe Mode and Disable Add In
2. Creating a new profile
3. Repair Outlook Data Files (.pst and .ost) - SCANPST.EXE / Deleted Data files or Rebuild Data Files on Account Settings
4. Running the /resetnavpane command
5. Manually remove the Navigation Pane configuration file and have Outlook reset it - %appdata%\Microsoft\Outlook (delete Outlook.xml)
6. Quick Repair Office Program (Change or Remove a Program on Control Panel)
7. Uninstalled and Reinstalled the Microsoft 365 Apps for Enterprise - en - us
Also this:
Open Registry Editor by pressing Windows+R and typing regedit.
Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0
left click and Delete the folder .
Close Registry Editor and restart your computer
After doing that, the outlook seems launching, then it asks for email to connect, but then this time the error popped up.
"Something went wrong and outlook couldn't set up your account. Please try again. If the problem continues, contact your email administrator."
Then tried this:
Use ExcludeLastKnownGoodUrl to prevent Outlook from using the last known good AutoDiscover URL
HKEY_CURRENT_USER\Software\Microsoft\Office\x.0\Outlook\Autodiscover
DWORD: ExcludeLastKnownGoodUrl
Value: 1
After that, same issue.
Any other things to try please?
Note, no problem accessing same email account on Outlook on the web, account is working perfectly fine.
Thank you
