Today during a Windows 10 update, I lost access to my emails with Windows Live Mail setup. Yes, I know, I've been warned about WLM's instability, but I was coasting. Anyway, my computer guy retrieved emails and set up both WLM and Thunderbird so that emails come to both. I want to wean myself off WLM and switch to Thunderbird and I'm wondering if someone can suggest how to find Thunderbird help for keystrokes, etc.

All help much appreciated.

Don