LG monitors have been reported to automatically install an application promoting paid subscriptions to McAfee antivirus software when connected to Windows PCs. This occurs via the LG Monitor App Installer, which is delivered through Windows Update without user approval. The app installs itself seamlessly upon connection and has been noted to present McAfee promotional offers on 31 out of 32 system boots. It operates with "runFullTrust" permissions, allowing it to launch at startup and display ads after system reboots. Reports of this behavior date back to at least 2024, affecting even older LG monitors. Users can remove the app through Windows Settings and disable startup entries, while Windows Pro and Enterprise users can implement a policy to block automatic downloads of applications linked to device metadata.