Windows repair software app refers to specialized programs designed to diagnose, troubleshoot, and fix issues within the Windows operating system without os reinstallation. These tools aim to address various problems that can occur on a Windows 11 computer system, such as system crashes, slow performance, registry errors, malware infections, ransomware attack, driver issues, and more. They provide users with a convenient and user-friendly way to resolve these problems without the need for advanced technical knowledge or manual intervention.