ERROR_ALREADY_RUNNING_LKG - 1074 (0x432)

The system is currently running with the last-known-good configuration.

Updated: Feb 21, 2026

Technical Meaning

The ERROR_ALREADY_RUNNING_LKG error code indicates that the system is already running with the last-known-good configuration. This status is typically observed during boot or system recovery operations where the system has determined it is not necessary to revert to a previous state.

Error Details

This error does not imply an issue but rather a condition of the system's current state. It is used in scenarios such as system restore, startup repair, and other recovery processes where the system has decided that no action is required because the last-known-good configuration is already active.

Usage Context

The ERROR_ALREADY_RUNNING_LKG error code can be encountered during various system operations, including but not limited to:

  • System boot-up process
  • Startup repair procedures
  • System restore operations
  • Automatic recovery mechanisms

This error typically does not require corrective action from the user or developer. It is a notification that the system has successfully identified and adopted the last-known-good configuration.

Developer Interpretation

Developers should interpret this error as an informational message rather than an indication of failure. The presence of ERROR_ALREADY_RUNNING_LKG suggests that the system's recovery mechanisms have been successful, and no further action is required to revert to a previous state or apply changes.

Related Errors

  • ERROR_REVERTED_TO_LAST_KNOWN_GOOD_STATE (1075, 0x433): Indicates that the system has successfully reverted to the last-known-good configuration.
  • ERROR_NO_LIKELY_BOOT_DEVICE (1008, 0x3F8): Occurs when no bootable device is found during startup. This error does not directly relate to ERROR_ALREADY_RUNNING_LKG but can be encountered in a similar context of system recovery.

FAQ

Q: What does the ERROR_ALREADY_RUNNING_LKG mean?

A: It indicates that the system is already running with the last-known-good configuration, and no action is required for recovery or restoration.

Q: Should I be concerned if this error occurs during startup?

A: No, this error is informational. It signifies that the system has successfully identified its current state as the last-known-good configuration.

Summary

The ERROR_ALREADY_RUNNING_LKG error code is a notification that the system is already in the desired state of the last-known-good configuration. This status is typically observed during recovery processes and does not require corrective action from the user or developer.