j'ai réinstallé EOS utility avec la méthode ci dessous (je recopie les infos d'une autre personne, FrançoisG ) :

FrancoisG Says:

for the 2.11 version (tested on 2.11.4) on MAC (ML but doesn’t matter) :
- mount the EU211.4x-updater.dmg
- copy the application (like on your desktop)
- unmount the dmg
- show package contents of the copy on your desktop
- on ./Contents/Ressources/ delete the Info.datx file
- close
- Run it.

It’ll do the job.
You have to proceed the same way for DPP, and i think all the Canon software released at the same time. I’ve just tested DPP and EOS-Utility.

As i felt on this site looking for the good tips, once i found it i came back to share it.