The Windows Registry is a hierarchical database that stores low-level settings for the Microsoft Windows operating system and for applications that opt to use the Registry. Symptom 1: \Windows\System32\Config\System is missing or corrupt error screen on startup The error messages, alerts, warnings, and symptoms below are tied to this error. The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations. 2.4 Fix #3: Restore the registry manuallyĪbout the “ \WINDOWS\SYSTEM32\CONFIG\SYSTEM is missing or corrupt” error.