Symptoms

When double clicking the setup evaluation executable file, Windows displays:

"Error opening file for writing: <Path to confluence.exe>"

Windows has been configured with UAC (User Account Control) enabled.

Cause

This is caused by the user running the Confluence Setup executable without 'Administrator privileges'.

Resolution

1. Ensure the current Windows user has 'administrative' privileges on the Windows Operating System.
2. Right-click on the Confluence  installation file, and click 'Run as Administrator'.