What is a restore point?

A restore point is defined as a saved snapshot of your computer's system files and settings at a specific point in time. This feature allows users to revert their system to a previous state, which can be particularly useful for recovering from system malfunctions or software issues that may arise after installing new applications or updates. By creating these restore points, users can ensure that they have a backup that reflects a stable configuration of their systems, thus providing an essential tool for maintenance and recovery.

The other options refer to different concepts: a saved snapshot of settings on a mobile device does not encompass the broader system files of a computer, an exact duplicate of a hard drive implies a complete image rather than just system files and settings, and a security measure to protect against viruses describes a different aspect of computer security unrelated to restore points. This highlights the unique and critical role that restore points play in system recovery and maintenance within a computing environment.