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Windows Device Manager

Code 12: This device cannot find enough free resources

Windows reports a hardware-resource conflict or insufficient firmware/BIOS resource allocation.

First action

Inspect Device Manager for resource conflicts and follow the computer/device maker's BIOS or hardware guidance when appropriate.

Use the error code as a Windows device-state clue. It does not by itself identify the exact failed component inside the hardware.

Then verify

Do not stop at the code disappearing

  1. 1

    Do not randomly change BIOS resource settings without model-specific documentation.

  2. 2

    Retest after resolving the conflicting device/resource.

After Windows reports the device normally, run the matching DeviceOK test when one exists—for example camera, microphone, keyboard, mouse, controller or audio—to confirm the user-facing function works.