ERROR_INVALID_REPARSE_DATA - 4392 (0x1128)
The data present in the reparse point buffer is invalid.
Updated: Feb 21, 2026
Technical Background
The ERROR_INVALID_REPARSE_DATA error code, with the numeric value of 4392 (0x1128), indicates that the reparse point buffer contains invalid data. Reparse points are a feature in Windows file systems used to provide additional information about files or directories beyond their basic attributes.
Error Details
Reparse points can be used for various purposes, such as creating symbolic links, mount points, junctions, and other advanced file system features. When the operating system encounters a reparse point during operations like directory enumeration or file access, it expects the buffer to contain valid data that describes the nature of the reparse point.
Common Causes
The error ERROR_INVALID_REPARSE_DATA is typically caused by one of the following scenarios:
- Invalid parameter values: The parameters passed to a function involving reparse points are incorrect or inconsistent with the expected format.
- Incorrect object type: The operation being performed on a file or directory that has a reparse point attached does not match the type of reparse point present.
- Corrupted data: The reparse point buffer itself may be corrupted, leading to invalid data being interpreted by the system.
Real-World Context
This error can occur in various scenarios where reparse points are involved. For example, it might appear when attempting to access a file or directory that has an improperly formatted reparse point, or during operations like CreateFile or FindFirstFile on such objects.
Is This Error Critical?
The criticality of this error depends on the specific operation and context in which it occurs. In general, encountering this error can indicate a problem with file system integrity or incorrect usage of reparse points. However, it is not necessarily indicative of a catastrophic failure; the system may still be able to function normally after addressing the issue.
How to Diagnose
To diagnose ERROR_INVALID_REPARSE_DATA, consider the following steps:
- Review operation context: Ensure that the operation being performed on the file or directory is appropriate for its reparse point type. For example, a symbolic link should not be accessed as if it were a regular file.
- Validate parameters: Check the parameters passed to functions involving reparse points to ensure they are correct and consistent with the expected format.
- Confirm object types: Verify that the objects being operated on have valid and correctly formatted reparse points. Corrupted or improperly configured reparse points can lead to this error.
How to Resolve
To resolve ERROR_INVALID_REPARSE_DATA, take the following actions:
- Correct parameter usage: Ensure all parameters are used correctly according to their intended purpose and format.
- Adjust operation context: If the operation is not appropriate for the reparse point type, adjust the operation or use a different method that is compatible with the reparse point.
- Restore data: If the error is due to corrupted data in the reparse point buffer, restore the correct data. This may involve correcting configuration settings or repairing file system integrity.
Developer Notes
Developers should be aware of the specific requirements and constraints when working with reparse points. Ensuring that all operations are performed correctly and that parameters are validated can help prevent this error from occurring.
Related Errors
ERROR_REPARSE_POINT: Indicates a general issue with reparse points, but does not specify invalid data.ERROR_INVALID_PARAMETER: Can occur if the parameters passed to functions involving reparse points are incorrect or inconsistent.
FAQ
Q: What causes ERROR_INVALID_REPARSE_DATA?
A: This error typically occurs due to invalid parameter values, incorrect object types, or corrupted data in the reparse point buffer.
Q: How can I prevent this error from occurring?
A: Ensure that all parameters are correctly formatted and appropriate for the operation being performed. Validate object types and ensure file system integrity is maintained.
Summary
ERROR_INVALID_REPARSE_DATA indicates that the data in a reparse point buffer is invalid, which can occur due to various reasons such as incorrect parameter usage or corrupted data. Diagnosing and resolving this error involves reviewing operation context, validating parameters, and ensuring object types are correct. Proper handling of reparse points can help prevent this issue.