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Windows Device Manager Code 12 — Insufficient Resources

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Overview

Windows Device Manager Code 12 means two devices are trying to use the same system resources (IRQ, memory, or I/O port).

Key Details

  • This device cannot find enough free resources. (Code 12)
  • Resource conflict between two devices
  • Common with older hardware or manual IRQ assignment
  • May need BIOS changes to resolve

Common Causes

  • Two devices assigned the same IRQ or memory range
  • BIOS not properly distributing resources
  • Legacy device requiring specific resources
  • Too many devices on same bus

Steps

  1. 1Disable the conflicting device temporarily
  2. 2Update BIOS to latest version
  3. 3Change PCI slot for expansion cards
  4. 4In BIOS, reset PnP settings to default

Tags

windowsdriverdriver code 12errorfix

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Frequently Asked Questions

IRQ (interrupt), memory addresses, and I/O ports that hardware uses to communicate.