Let’s find out what problems it can cause and what you can do to diagnose and fix these issues by following a few simple methods. But the problem is that this file seems to cause problems for some users. The function of the Instup.exe file is to launch the installer and update the antivirus. This antivirus software is developed by one of the most popular antivirus software developer Avast.
Basically, Instup.exe is a type of program file, which is part of the Avast Antivirus.
