Reimaging is a cybersecurity process where a computer or device is wiped clean and its operating system, along with approved applications, is reinstalled from a trusted image. This method is used to remove malware, fix persistent issues, or restore the device to a known secure state. Reimaging ensures that all unauthorized changes, infections, or corruptions are completely removed. It's commonly used after a security breach or when a device is suspected to be compromised. The process helps organizations maintain security, compliance, and operational consistency across all endpoints by ensuring that only approved configurations and software are present on devices.