SUMMARYConnecting certain LG monitors to Windows PCs can automatically install LG Monitor App Installer through Windows Update without user consent. Gamers Nexus reproduced the behavior on an LG UltraGear 34GX900A-B and found it repeatedly launched McAfee trial promotions at startup, with 31 popups across 32 boots. The behavior also appeared on an older LG UltraFine 32UN880-B, and user complaints have circulated since at least 2024.
VideoCardz reports that connecting certain LG monitors to Windows PCs can trigger Windows Update to automatically install the LG Monitor App Installer, which runs at startup and repeatedly displays McAfee trial promotions. From the report: Gamers Nexus reproduced the behavior with an LG UltraGear 34GX900A-B after receiving reports from monitor owners. Windows Update first installed LG extension and software component packages. Windows Reliability Monitor showed that LG Monitor App Installer appeared one minute later. The installation did not display a consent prompt or require the user to approve the download.
Gamers Nexus tested the application across 32 consecutive system boots. It displayed a McAfee promotion during 31 of them. On the remaining boot, it promoted one of LG's own monitor utilities. The McAfee popup offered a 30-day trial that would convert into a paid subscription. The behavior does not appear to be limited to newly purchased displays. Gamers Nexus also received the popup on an LG UltraFine 32UN880-B purchased three years earlier. User complaints about LG Monitor App Installer date back to at least 2024, although the recent increase in reports suggests that more models may now be receiving it.