ERROR_BAD_DRIVER - 2001 (0x7D1)
The specified driver is invalid.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_BAD_DRIVER error code indicates that a driver being used by the system is invalid or corrupted. This can occur when attempting to load a driver, and it signifies that the driver does not meet the expected specifications or requirements.
Error Details
- Error Name: ERROR_BAD_DRIVER
- Numeric Code: 2001
- Hex Code: 0x7D1
- Short Description: The specified driver is invalid.
This error typically arises when a driver fails to initialize properly or does not conform to the expected structure and behavior. It can be encountered during various operations that require driver support, such as device installation, initialization, or configuration.
Usage Context
The ERROR_BAD_DRIVER error can occur in several contexts within the Windows operating system, including but not limited to:
- Device installation
- Driver loading
- Initialization of hardware devices
- Configuration of device settings
Developer Interpretation
When encountering this error, developers should consider the following aspects:
- Driver Compatibility: Ensure that the driver is compatible with the version of Windows and the specific hardware it is intended to support.
- Driver Integrity: Verify that the driver file has not been corrupted or tampered with. This can be done by comparing checksums or hashes against known good values.
- Driver Installation: Check if the driver was installed correctly and if all necessary files are present in the correct locations.
- Driver Version: Ensure that the driver version is up to date and matches the requirements of the system.
Related Errors
ERROR_BAD_EXE_FORMAT(0x1B)STATUS_DRIVER_IRQL_NOT_LESS_OR_EQUAL(0x238)STATUS_INVALID_IMAGE_FORMAT(0x6D7)
These errors may indicate similar issues with driver or executable files, such as corruption or incompatibility.
FAQ
Q: What causes the ERROR_BAD_DRIVER error?
A: The error can be caused by invalid or corrupted driver files, incompatible drivers, or incorrect installation of drivers. It is also possible that the system requirements for the driver are not met.
Q: How can I resolve this issue?
A: To resolve the ERROR_BAD_DRIVER issue, you should first ensure that all necessary driver files are present and correctly installed. You may need to reinstall or update the driver to a compatible version. Additionally, verify the integrity of the driver file using checksums or hashes.
Q: Is this error critical?
A: The severity of the ERROR_BAD_DRIVER can vary depending on the context in which it occurs. In some cases, it may prevent certain hardware from functioning correctly, while in others, it might only affect specific operations without impacting system stability.
Summary
The ERROR_BAD_DRIVER error code indicates that a driver being used by the system is invalid or corrupted. Developers should ensure compatibility, integrity, and correct installation of drivers to avoid this issue. Regularly updating and verifying driver files can help prevent such errors from occurring.