To make it clear, i would like to have Consolas font set as default for that, no matter how, when I launch PowerShell, it is the font used to display console text.
I've found very few explanations for that on the web, and none were really clear to me.
EDIT Well, according to this question, PowerShell is started by a shortcut which normal user can't modify (it was my case).
I right-clicked the shortcut, then get to its "font" tag. That time, when trying to change the font, I got the classical "access reserved to administrator" dialog allowing me to change the shortcut, once I was recognized as admin, what I did.
Unfortunatly, it wasn't enough as a subsequent launch revealed the deceptive "raster font".