If the navigation pane configuration file is the cause of the problem, consider deleting it. Method 5: Delete Navigation Pane Configuration File

Uncheck the checkboxes against the add-ins that you want to disable.

Select COM Add-ins and then click on Go.

If Outlook works without any issue, it means some add-ins are causing the issue.įollow the below steps to disable the add-ins: To start Outlook in safe mode, open the Run dialog box (Windows + R keys), type 'Outlook.exe/Safe', and press Enter. You can try to open Outlook in safe mode to check if any add-ins are causing the issue. Sometimes, add-ins in Microsoft Outlook can cause issues when starting the program.

Select the newly created profile and set it as the default profile.

Follow the prompts to complete the profile creation process.

Click on Add and then enter a name for the new profile.

In such a case, you can create a new profile in Microsoft Outlook. Sometimes, a corrupted profile can cause issues with Microsoft Outlook.

Follow the prompts to complete the update process.

Click on Update Options and then select Update Now.

Click on File and then select Office Account.

To update Microsoft Outlook, follow these steps: If your Outlook is not updated, you may encounter errors while opening the application.

Follow the prompts to complete the repair process.Īlways ensure that you have the latest version of Microsoft Outlook installed on your computer.

Then, select the Repair option and click the Repair button.

Find Microsoft Office and right-click on it.

Open the Control Panel on your computer.

To repair the Office installation, follow these steps:

You may not be able to start Microsoft Outlook due to a corrupted Office installation. Here are some solutions you can try to resolve this error. Methods to Fix “The attempt to log on to Microsoft Exchange has failed' Error A few likely causes of this error include issues with Navigation Pane settings, corrupted Outlook data files, connectivity issues, incompatible third-party add-ins, and more. This error may occur due to different reasons. The attempt to log on to Microsoft Exchange has failed.' This error prevents you from accessing any content in Outlook. One such error is 'Cannot start Microsoft Outlook. You may encounter many errors while using Microsoft Outlook.

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