The error message "InstallShield setup launched but seems to have closed without finishing" typically occurs when the installer encounters a critical conflict or lacks the necessary environment to complete its task. This is most commonly reported by users attempting to install the Respondus LockDown Browser. Common Root Causes
Security Software Interference: Antivirus or firewall programs (such as ESET or Windows Defender) may flag the installation process as suspicious and terminate it without notice. The error message "InstallShield setup launched but seems
The most common reason an InstallShield setup “launches but closes” is that a previous instance of the InstallShield engine is stuck in memory or a corrupt cache is blocking the new one. Step 2: Purge the Stuck InstallShield Engine The
If the setup closes without an error message, one of these three steps failed silently. Common culprits include: The error message "InstallShield setup launched but seems