You can drag and drop these icons to change their order, ensuring your most-used tools (like the Calendar) are always first. Troubleshooting App Launch Issues
If clicking the Outlook icon results in an error or no response, use these built-in recovery methods: outlook icon
Navigate to the ellipses (...) on your navigation bar, select Navigation Options , and uncheck Compact Navigation . This will swap small icons for full words like "Mail," "Calendar," and "People". You can drag and drop these icons to
Signifies a connection issue between your local client and the mail server. select Navigation Options
Troubleshooting Outlook Icon Issues: Expert Q&A - JustAnswer