ERROR_WAIT_1 - 731 (0x2DB)

Updated: Feb 21, 2026

Introduction

ERROR_WAIT_1 is a generic error code in the Windows operating system. It indicates that a wait operation has either timed out or is still pending.

Technical Meaning

The ERROR_WAIT_1 error code signifies that an asynchronous operation, such as waiting for I/O completion, has not yet completed. This can occur when a function returns control to the caller before the requested operation is finished. The specific behavior depends on the context in which it is used.

Error Details

The numeric value of ERROR_WAIT_1 is 731 (0x2DB) and is typically returned by functions that perform asynchronous operations, such as file I/O or device communication.

Usage Context

This error code can be encountered in various scenarios where an operation is expected to complete asynchronously. Common contexts include:

  • File system operations: Waiting for a file handle to become available after a previous operation.
  • Device communication: Waiting for data to be received over a serial or network connection.
  • I/O operations: Waiting for a disk read or write to complete.

Developer Interpretation

When ERROR_WAIT_1 is returned, it indicates that the requested operation has not yet completed. Developers should handle this error by either retrying the operation or waiting until the operation completes naturally. The specific handling depends on the application's requirements and the context in which the operation was initiated.

Related Errors

  • ERROR_IO_PENDING (997): Indicates that an I/O operation is pending but not yet completed.
  • ERROR_OPERATION_ABORTED (995): Indicates that a previous asynchronous operation has been canceled or aborted.

FAQ

Q: What does ERROR_WAIT_1 mean?

A: It indicates that a wait operation is still pending or has timed out. The specific behavior depends on the context in which it is used.

Q: How should I handle this error?

A: You can either retry the operation or wait until the operation completes naturally, depending on your application's requirements and the context of the operation.

Summary

ERROR_WAIT_1 is a generic error code indicating that an asynchronous operation has not yet completed. Developers should understand its context-specific behavior and handle it appropriately in their applications.