Error “This device cannot find enough free resources (Code 12)” — How to Fix It

The Code 12 error in Windows often indicates that a device lacks sufficient system resources to operate properly. This issue can arise from operating system resource management problems, driver conflicts, or hardware compatibility issues. Let’s look at the causes of this error and the steps you can take to resolve it.

1. Check BIOS or UEFI Settings

In some cases, resource-related errors may stem from settings in your BIOS/UEFI. Try the following steps:

  • Restart your computer and enter BIOS/UEFI (usually by pressing Del, F2, or another key during startup).
  • Ensure the Plug and Play OS or Resources Allocation setting is enabled.
  • Verify that Memory Remapping is enabled if it’s available in your BIOS.

Adjusting these settings may help distribute resources more effectively.

2. Update or Reinstall Device Drivers

Conflicting or outdated drivers can cause resource allocation issues. To address this:

  • Open Device Manager by pressing Win + X and selecting the option.
  • Locate the device showing the error (usually marked with an exclamation point) and select Update driver.
  • If updating doesn’t help, try uninstalling the device, restarting your computer, and reinstalling the driver.

3. Check for Conflicting Devices

Sometimes, this error arises due to a conflict between devices. To check for conflicts:

  • In Device Manager, double-click the device with Code 12 and go to the Resources tab.
  • If another device is using the same resources, such as interrupts or input-output ports, you may see a conflict here. Try disabling or reconfiguring the conflicting device.

4. Use the Built-in Troubleshooter

Windows has a built-in tool for diagnosing and resolving hardware issues:

  • Open Control Panel and go to Troubleshooting.
  • Select Hardware and Sound, then Hardware and Devices Troubleshooter.
  • Follow the prompts to allow Windows to attempt a fix.

5. Check for System Updates

Some Windows updates address known driver and hardware issues. Make sure your system has the latest updates installed:

  • Open Windows Settings by pressing Win + I.
  • Go to Update & Security and click Check for updates.