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FileAccessErrorView 1.33 by NirSoft is a lightweight Windows diagnostic utility that passively monitors and logs every file-access failure occurring anywhere in the operating system, capturing the exact filename that could not be opened, read, written, or deleted, the process identifier and executable name of the requesting program, the NTSTATUS error code and its human-readable description, the cumulative count of identical failures, and the precise timestamp of each event. Designed for system administrators, support technicians, and software developers, the tool launches silently, immediately begins tracing all CreateFile, ReadFile, WriteFile, and DeleteFile API calls, and presents the collected data in a continuously updating table that can be filtered, searched, and exported to CSV, XML, or HTML for further analysis. Typical use cases include identifying the missing or locked file that causes an application to hang on startup, detecting attempts to reach offline network shares that delay Office suites or CAD programs, confirming permission-denied events that prevent installers from updating DLLs in protected folders, and auditing legacy services that repeatedly fail to read obsolete registry hive backups. Because many benign operations—such as a browser checking for a non-existent cache index or a game probing for optional config files—also generate NTSTATUS entries, the presence of an error record does not by itself denote malfunction; instead, the context provided by the process name, path, and recurrence count allows investigators to distinguish harmless noise from critical faults. FileAccessErrorView is available for free on get.nero.com, with downloads supplied through trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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