ERROR_CTX_MODEM_INF_NOT_FOUND - 7009 (0x1B61)
The MODEM.INF file was not found.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_CTX_MODEM_INF_NOT_FOUND error, with the numeric code 7009 or hexadecimal code 0x1B61, indicates that a required configuration file for modem drivers could not be located. This file is essential for the proper functioning of certain modem-related operations within the Windows operating system.
Error Details
The MODEM.INF file contains driver and configuration information necessary for the installation and operation of modems on a Windows system. When this file is missing, the system cannot properly configure or use the modem, leading to the generation of this error code.
Usage Context
This error typically occurs in scenarios where the operating system attempts to install or update modem drivers, or when specific modem-related functions are invoked. It can also appear during troubleshooting or configuration tasks involving modems and their associated hardware.
Developer Interpretation
Developers should interpret this error as an indication that a critical file is missing from the system's driver store or configuration directory. This could be due to various reasons, such as a corrupted installation, incorrect file placement, or issues with the system's file paths.
Common Causes
- Missing
MODEM.INFfile in the correct location. - Incorrect path specified for the
MODEM.INFfile during driver installation. - Corrupted or incomplete driver package that does not include the necessary
MODEM.INFfile.
Related Errors
- ERROR_CTX_NO_MODEM_INSTALLED (7012)
- ERROR_CTX_FILE_NOT_FOUND (7015)
- ERROR_CTX_INVALID_MODEM_CONFIG (7023)
FAQ
Q: What does the ERROR_CTX_MODEM_INF_NOT_FOUND error mean?
A: This error indicates that the required MODEM.INF file is missing, preventing proper modem configuration or operation.
Q: How can I resolve this issue?
A: Ensure that the MODEM.INF file is present in the correct location and that it is part of a valid driver package. Reinstalling the modem drivers may also resolve the issue.
Summary
The ERROR_CTX_MODEM_INF_NOT_FOUND error signifies that the necessary configuration file for modem operations could not be located, leading to potential issues with modem functionality. Developers should ensure that all required files are correctly placed and that driver packages include all necessary components.