Installing software typically requires elevated permissions that standard user accounts do not have. The CompTIA ITF+ FC0-U71 Official Study Guide explains:
* "An administrator account provides full system access, including installing or removing software, changing system settings, and managing user accounts."
* The user account does not have these privileges by default.
* Least privilege refers to granting only the minimum permissions necessary (which would not typically include software installation for regular users).
* Single factor refers to authentication methods, not access levels.
Since the employee is denied installation due to insufficient privileges, administrator access is needed to complete the installation.
Reference: CompTIA ITF+ FC0-U71 Official Study Guide, Chapter 10 - Security Concepts (User Account Types & Permissions).