ESENT (Extensible Storage Engine) is a core Windows database technology that provides ACID-compliant database services to various system components. When Event ID 2562 occurs, it signals that the database engine encountered a fatal error while performing a page read operation from an .edb database file.
The error manifests when ESENT attempts to access a specific database page but receives corrupted data, encounters I/O errors, or finds the page structure invalid. This can happen due to several factors: physical disk corruption, file system inconsistencies, power failures during write operations, or memory corruption affecting the database cache.
The event typically includes critical diagnostic information such as the database file path, the specific page number that failed to read, the process ID of the affected application, and sometimes additional error codes that help pinpoint the root cause. Services commonly affected include Windows Search (SearchIndexer.exe), Active Directory Domain Services (lsass.exe), Windows Update components, and Exchange Server databases.
The severity of this event cannot be understated—it often indicates underlying storage subsystem problems that may affect multiple databases and services. In domain controller environments, this error can impact authentication services and directory replication. On workstations, it frequently affects search functionality and system update mechanisms.
