How can I disable McAfee Antivirus software on my device?

To disable McAfee Antivirus software on a device, one needs to access the antivirus interface. First, locate the McAfee icon on the system tray or notification area of the taskbar; it may be necessary to click the upward arrow if the icon is hidden amongst other background apps. Right-click on the McAfee icon to open a menu where there should be an option to disable or turn off real-time scanning. Selecting this will prompt a window asking for the duration of the disablement. Choose accordingly, acknowledging that disabling the antivirus leaves the system more vulnerable to threats. In some cases, for complete deactivation of the software or to prevent it from launching on startup, one might need to delve into the System Configuration utility (msconfig) or Task Manager's Startup tab on Windows, or Login Items under Users & Groups in Mac System Preferences, and deselect McAfee entries.