Hello, I want to install 20018 august security updates, but analyse and install buttons not active because of anti virus status - Not Updated. Actually I don't have installed any anti virus software. Maybe somebody had same situation?
you have to copy a registry (don't exactly remember the name,probably mentioned in released notes of updates) from MSSecurityUpdates folder to your C Drive and run that registry from CMD prompt. I think this will bypass antivirus updation prerequisite for Security update installation.