Grand Theft Auto V InstallShield Wizard v.1.2 is a software developer for Windows.
It is reported that the following Windows processes are part of Grand Theft Auto V InstallShield Wizard v.1.2:
If you want to remove Grand Theft Auto V InstallShield Wizard v.1.2 from your computer, just go to Start > Control Panel > Add/Remove programs and select Grand Theft Auto V InstallShield Wizard v.1.2 from the list of programs.