Create a new Outlook profile 4. Verify if Outlook is running in Compatibility Mode 5. Repair Outlook data file to fix Outlook won’t start error Sometimes, the Microsoft Outlook fails to open due to a PST file corruption.
In this case you are likely to get this error : “Cannot start Microsoft Office Outlook. The file Outlook. pst is not a personal folders file.”. Let’s try to repair your outlook. Pst file using Scanpst. Exe, aka Inbox Repair tool. Open Windows Explorer and navigate to C:\Program Files\Microsoft Office\{Office version}.
“Cannot start Microsoft Outlook. Cannot open the Outlook Window. The set of folders cannot be opened. The attempt to log on to Microsoft Exchange has failed.” 1. Create new Outlook Profile – Tried several times and still won’t open 3. Run the resetnavpane command – did not fix the problem 4.
Then, what to do when outlook cannot start or open?
2 Repair your Outlook data files (.pst and .ost) using the Inbox Repair tool. 3 Turn off Compatibility mode in Outlook. 4 Create a new Outlook profile. 5 Start Outlook in Safe Mode without any extensions.
How to fix Microsoft Outlook not responding on Windows 7?
To do this, proceed with the following steps: Enter the below command in the Start > Search field on Windows 7 and Windows 8 (or Start > Run on Windows XP) and press Enter: %appdata%\Microsoft\Outlook This will open the folder where Microsoft Outlook configuration files are stored . Find and delete the Outlook., and xml file.
How to fix “outlook cannot open the set of folders” error?
Cannot open the Outlook window. The set of folders cannot be opened.” error, you can attempt to manually remove the Navigation Pane configuration file and have Outlook reset it. Press the Windows + R keys on your keyboard to bring up the Run application. On older versions of Windows, you can also reach this from the Start menu.
While reading we ran into the question “What does “the set of folders cannot be opened” mean?”.
Some believe that the set of folders cannot be opened.” is one of the most problematic Outlook errors. It’s because this error prevents you from accessing your mailbox. That said, you can easily fix this error by applying the methods mentioned in this post.
How to fix outlook not opening in safe mode?
Create new Outlook Profile – Tried several times and still won’t open 3. Run the resetnavpane command – did not fix the problem 4. Disable Exchange cached mode – No difference 5. Repair Outlook Data File – No data file to repair as Outlook never opened to create one.