ERROR_INVALID_TASK_NAME - 1550 (0x60E)

The specified task name is invalid.

Updated: Feb 21, 2026

Technical Meaning

The ERROR_INVALID_TASK_NAME error code indicates that a task name provided to the Windows Task Scheduler is not valid. This can occur when attempting to create, modify, or delete a scheduled task.

Error Details

  • Error Name: ERROR_INVALID_TASK_NAME
  • Numeric Code: 1550 (0x60E)
  • Short Description: The specified task name is invalid.

This error typically arises when the task name does not meet certain validation criteria, such as containing illegal characters or exceeding a maximum length. It can also occur if the task name is already in use by another scheduled task.

Usage Context

The ERROR_INVALID_TASK_NAME is commonly encountered within the Windows Task Scheduler API and related utilities. Developers should ensure that any task names used are valid according to the specified naming conventions and constraints.

Developer Interpretation

When encountering this error, developers should verify the following:

  • Task Name Validity: Ensure that the task name does not contain illegal characters or exceeds the maximum allowed length.
  • Name Uniqueness: Confirm that the task name is unique within the Task Scheduler context to avoid conflicts with existing tasks.

Related Errors

FAQ

Q: What causes ERROR_INVALID_TASK_NAME?

A: The error occurs when a task name provided is invalid, such as containing illegal characters or exceeding the maximum length.

Q: How can I resolve this issue?

A: Verify that the task name meets all validation criteria and ensure its uniqueness within the Task Scheduler context.

Summary

The ERROR_INVALID_TASK_NAME error code indicates an invalid task name in the Windows Task Scheduler. Developers should validate task names to avoid this error, ensuring they meet naming conventions and are unique.