Pre-Upgrade Antivirus and Endpoint Protection Detection Check

NetBrain's UI upgrade process does not currently detect whether antivirus or endpoint protection software is actively running on the server before an upgrade begins. Because such software can block file replacement, executable installation, DLL updates, or Windows service operations, upgrades may fail partway through with permission or access-denied errors that are only discovered after the process has started. This enhancement would add a pre-upgrade check that detects active antivirus or endpoint protection software and displays a warning before the upgrade proceeds, giving the user the option to cancel or continue after acknowledging the risk. Providing this early visibility would help customers proactively adjust their security software settings, reducing upgrade failures, troubleshooting effort, and related support cases while improving overall upgrade reliability.