Outlook - no options working, at my wits end

1. Fixes to try immediately 
Restart Outlook 
Close it completely and then reopen it (check Task Manager to make sure the OUTLOOK.EXE process is finished) 
Disable add-ons 
File → Options → Add-ons 
Bottom Management Select [COM Add-ons] → Go → Uncheck All 
Restart Outlook to test it 
2. Critical fix steps 
Rebuild the navigation pane 
Close Outlook 
Delete this file %appdata%\Microsoft\Outlook\profiles.xml 
Repairing Office Installation 
Control Panel → Programs and Features → Select Microsoft 365 → Change → Quick Fix 
Reset View Settings 
Press Alt+F2 in Outlook to open Advanced View Settings → Click Reset 
3. Advanced Solutions New Outlook profile 
Control Panel → Mail → Show Profile 
New profile → Re-add account 
Complete uninstallation and reinstallation 
Use official uninstallation tool: 
https://aka.ms/SaRA-officeUninstallFromPC 
Reinstallation: 
https://www.office.com