The most frequent cause of this specific error is or third-party antivirus software flagging a game file as a "false positive" and moving it to quarantine.
Optionally, try setting the compatibility mode to . 5. Repair System Files (SFC Scan) BO3 Problem additional dll couldn't be loaded : r/blackops3 The most frequent cause of this specific error
Steam will scan your installation and automatically replace any missing or corrupted DLLs. 4. Run as Administrator and Compatibility Mode The most frequent cause of this specific error
Right-click Call of Duty: Black Ops III in your Library > Properties > Installed Files > Verify integrity of game files . The most frequent cause of this specific error
Go to Windows Security > Virus & threat protection > Protection history . Look for recently blocked items related to the BO3 folder and select Restore .