You have two solutions. I think the second achieves the best when you say “to get rid of”:
- By unchecking the option
Show On Startupin the configuration of theWelcomeplugin (Settings»Packages»welcome),Atomdoesn’t show theWelcomescreen at startup (or when opening a newAtomwindow), but still loads the plugin:

- By disabling the
Welcomeplugin (Settings»Packages»welcome),Atomdoesn’t load it (which saves memory) and so doesn’t show theWelcomescreen (under any circumstance):
![Atom Welcome Plug-in Info Panel]](https://i.stack.imgur.com/1anSJ.png)