Drilling and incinerating are physical destruction methods that make the data on hard drives unrecoverable.
Standard formatting, erasing and low-level formatting are logical methods that can be reversed with data recovery tools. Recycling is not a destruction method at all. Verified References: https://www.comptia.org
/blog/what-is-a-certificate-of-destruction https://www.comptia.org/certifications/a

Default Apps should be used to ensure all PDF files open in Adobe Reader1

Loading the system in safe mode is a common troubleshooting step that allows the technician to isolate the problem by disabling unnecessary drivers and services. This can help determine if the issue is caused by a faulty device, a corrupted system file, or a malware infection.

Comprehensive and Detailed In-Depth Explanation:
PXE (Preboot Execution Environment) allows a computer to boot from a network server and install a system image remotely. It is commonly used for large-scale deployments because it eliminates the need for physical installation media.
* A. ISO - Incorrect. ISO files are used for manual installations, but they do not automate network deployments.
* B. Secure - Incorrect. There is no "secure boot process" option for automated deployments. Secure Boot is a security feature.
* C. USB - Incorrect. USB boot requires manual installation on each device, making it inefficient for mass deployment.
Reference:
CompTIA A+ 220-1102, Objective 3.3 - Deployment Methods and Imaging

To enforce a security policy that prohibits USB drives on user workstations, the network administrator should run the gpupdate (C) command. This command forces a Group Policy update, which can include policies to disable USB drives. Group Policy is a feature in Microsoft Windows that allows for centralized management and configuration of operating systems, applications, and users' settings in an Active Directory environment.