ERROR_INVALID_BLOCK - 9 (0x9)
The storage control block address is invalid.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_INVALID_BLOCK error code indicates that a storage control block address provided to the system is invalid. This typically occurs when an application or driver attempts to access storage resources using an incorrect or non-existent address.
Error Details
This error can arise in various scenarios, such as file I/O operations, disk management, or volume handling. The specific context of the operation will determine which part of the system is affected by this invalid block address.
Usage Context
The ERROR_INVALID_BLOCK error code is commonly encountered when:
- Attempting to read from or write to a storage device using an incorrect block address.
- Performing operations on file systems where the control block addresses are essential for proper functioning.
- Handling disk sectors or blocks in a manner that violates expected addressing conventions.
Developer Interpretation
Developers should interpret this error as an indication that the provided block address is not valid within the context of the operation being performed. This could be due to incorrect parameter values, misuse of APIs, or issues with the underlying storage system.
Related Errors
ERROR_INVALID_PARAMETER(0x5)ERROR_BAD_COMMAND(0xB)ERROR_SECTOR_NOT_FOUND(0xC)
These errors may occur in similar contexts and can provide additional insights into the root cause of issues related to invalid block addresses.
FAQ
Q: What does the ERROR_INVALID_BLOCK error mean?
A: It indicates that a storage control block address is invalid, which could be due to incorrect parameter values or misuse of APIs.
Q: How can I resolve this issue?
A: Ensure that all parameters passed to file system operations are valid and correctly formatted. Verify the context in which the operation is being performed and ensure compliance with expected addressing conventions.
Summary
The ERROR_INVALID_BLOCK error code signifies an invalid storage control block address, which can occur during various file I/O or disk management operations. Developers should validate parameters and ensure correct usage of APIs to avoid this error.