How to Resolve an “Error Opening File for Writing” Windows Error--- Are you getting an “Error opening file for writing” message while trying to run an app installer on your Windows PC? You may not have the required permission to change the folder where you’re installing your app. Here’s how to fix that and other items that may be causing your issue. What you will learn: 1. How to fix error that your setup wizard isn’t compatible with your Windows version, your setup file is faulty, you already h