Immediately add your Assassin's Creed Unity folder to the "Exclusions" list in your antivirus settings so it doesn't delete the file again the next time you launch the game. 2. Use the Built-in Backup (NoDVD Folder)
Open your antivirus software (e.g., > Virus & threat protection ). Check the Protection History or Quarantine section. Immediately add your Assassin's Creed Unity folder to