ERROR_INSTALL_LOG_FAILURE - 1622 (0x656)
Error opening installation log file. Verify that the specified log file location exists and that you can write to it.
Updated: Feb 21, 2026
Technical Background
The error code ERROR_INSTALL_LOG_FAILURE (1622, 0x656) is encountered during the installation process of Windows. This error indicates a failure to open or write to an installation log file.
Error Details
This specific error suggests that the system was unable to access or create the specified log file due to either the location not existing or insufficient permissions to write to it. The error message advises verifying the existence and writability of the specified log file location.
Common Causes
- Incorrect Log File Path: The path provided for the installation log might be incorrect, leading to a non-existent directory or file.
- Insufficient Permissions: The user account under which the installation is running may not have sufficient permissions to write to the specified location.
- File System Issues: There could be issues with the underlying file system that prevent writing to the specified path.
Real-World Context
This error can occur during various Windows installation scenarios, such as silent installations or custom installations where detailed logging is required. It is crucial for troubleshooting and ensuring a successful installation process.
Is This Error Critical?
The severity of this error depends on the context in which it occurs. While it does not prevent the installation from completing, it may result in missing log information that could be useful for diagnosing issues post-installation.
How to Diagnose
- Review Operation Context: Ensure that the path specified for the log file is correct and accessible.
- Validate Parameters: Check if the user account has sufficient permissions to write to the specified location.
- Confirm Object Types: Verify that the path provided is a valid directory or file, as required by the installation process.
- Verify Input Data: Ensure that there are no issues with the underlying file system that might prevent writing to the specified path.
How to Resolve
- Correct Parameter Usage: Ensure that the log file path is correctly specified and accessible.
- Adjust Operation Context: Run the installation process as an administrator or ensure that the user account has appropriate permissions.
- Restore Data: If there are issues with the file system, attempt to repair or restore the affected areas.
- Retry Operation with Valid Inputs: Attempt to run the installation again with valid inputs and paths.
Developer Notes
When encountering this error, developers should ensure that their applications handle errors gracefully and provide clear feedback to users regarding the failure to log information. This can aid in diagnosing issues during development and deployment phases.
Related Errors
ERROR_PATH_NOT_FOUND(2)ERROR_ACCESS_DENIED(5)ERROR_DISK_FULL(70)
FAQ
Q: What does the error code 1622 mean?
A: The error code 1622 indicates a failure to open or write to an installation log file. It suggests that the specified location either does not exist or is not writable.
Q: How can I resolve this issue?
A: Ensure that the path provided for the log file is correct and accessible, and that the user account has sufficient permissions to write to the specified location.
Summary
The ERROR_INSTALL_LOG_FAILURE (1622) error occurs when Windows fails to open or write to an installation log file. By following the diagnostic steps outlined above, users can resolve this issue and ensure a successful installation process.