How to install Trend Anti-Virus with AutoCAD?
You may encounter an error message after running an Autodesk setup.exe “The system cannot open the device or file specified”. If you have Trend Anti-Virus installed you are advised to turn it off before attempting to install AutoCAD. Right-click on the Trend icon in the task bar and choose Exit which may prompt for a password. The anti-virus service will restart after a system reboot.