I have the same problem already discussed here: https://gtm.steamproxy.vip/app/473690/discussions/0/1742229167188795271/

https://gtm.steamproxy.vip/app/473690/discussions/0/2243300286290498589/

https://gtm.steamproxy.vip/app/473690/discussions/0/1694923613878983128/

Tried to repair file, re-install, manually install EAC and the other things already suggested in old topic aside turn off antivirus obviously, there's some other fix that pop-up in the latest time?