Which Windows feature prompts for permission before changes and helps prevent unauthorized software installation?

Which Windows feature prompts for permission before changes and helps prevent unauthorized software installation?

• A. Disk Cleanup
• B. ReadyBoost
• C. System Restore
• D. User Account Control (UAC)

Answer: (D)

This feature controls elevation of privileges to stop unauthorized changes by requiring confirmation before actions that could affect the system. It prompts you for permission or an administrator password whenever a program tries to install software or modify system settings. That makes it harder for malware or accidental changes to slip in without your awareness. The other options serve different purposes: Disk Cleanup removes unneeded files to free space, ReadyBoost uses a fast drive to speed things up, and System Restore rolls the system back to a previous state rather than prompting for permissions before changes.

This feature controls elevation of privileges to stop unauthorized changes by requiring confirmation before actions that could affect the system. It prompts you for permission or an administrator password whenever a program tries to install software or modify system settings. That makes it harder for malware or accidental changes to slip in without your awareness. The other options serve different purposes: Disk Cleanup removes unneeded files to free space, ReadyBoost uses a fast drive to speed things up, and System Restore rolls the system back to a previous state rather than prompting for permissions before changes.