Which of the following must be done before an "All Software Install" Procedure?

Creating a system backup is crucial before initiating an "All Software Install" procedure. This precaution ensures that all existing configurations, settings, and data are preserved in case the installation process encounters issues or overwrites critical files. During a comprehensive software installation, there is always a risk of disruptions, such as unexpected errors or compatibility problems that may lead to data loss or system instability. By having a system backup, users can restore their system to its previous state, thereby minimizing downtime and protecting valuable information.

While checking network settings, verifying power supply, and updating firmware are important tasks in their own right, they do not directly contribute to safeguarding existing data and system integrity during a software installation. Issues related to network configurations or power supply can be addressed separately or may not necessarily impact the installation process itself as critically as ensuring a comprehensive system backup.