Many modern antiviruses (including Windows Defender) flag .ff files as "false positives" because mod menus often inject code into them. Your antivirus may have quarantined the zone folder.
Also run Steam.exe as administrator. This ensures Steam passes the correct permissions to the game. call of duty black ops error exe cannot find-zone
: Avoid using desktop or Start menu shortcuts, which may point to the wrong directory. Navigate to the game’s main installation folder (e.g., .../steamapps/common/Call of Duty Black Ops BlackOps.exe Verify Integrity of Game Files Many modern antiviruses (including Windows Defender) flag