Hello David! Thank you for your question. I am a licensed computer professional with over ten years of experience, and I will be assisting you today.I'm sorry about the issue. How did you try to recover navigation pane?Do you have Microsoft Office / Outlook 2003, 2007, 2010, etc.?Can we do a remote session, so we can chat, and I will be able to help you directly?Please reply at the box below. Thank you,
1. Windows key/R, entered outlook.exe /resetnavpane and pressed enter.
2. I have Outlook 2010
3. Yes to remote chat.
This problem occurred after I downloaded a video download programme, gained a malware in my IE11 browser that deposited small Amazon & eBay buttons in the top margin (a browser re-direct malware?) In following advice to remove it I indexed a search window. May be the cause, not sure.