If you have recently upgraded Windows or added a new hardware component to your PC, you might encounter a yellow exclamation mark in Device Manager alongside this error message:
"This device cannot find enough free resources that it can use. (Code 12)"
This error occurs when Windows cannot allocate sufficient system resources (such as memory ranges, I/O ports, or DMA channels) to a hardware device. This usually happens when two devices are assigned conflicting resources, prompting Windows to automatically disable one of them to maintain system stability.
Fortunately, this is typically a driver allocation issue rather than broken hardware. Here are three proven methods to resolve Code 12.
Method 1: Roll Back the Problem Driver
If the Code 12 error started appearing immediately after a recent driver update, rolling back to the previous version of the driver can solve the issue.
- Right-click the Start button and select Device Manager.
- Locate the problematic device, double-click it to open its Properties window.
- Navigate to the Driver tab.
- Click the Roll Back Driver button.
- Click Yes when prompted for confirmation.
- Restart your PC and check if the device is functioning normally.
Note: If the "Roll Back Driver" option is grayed out, it means Windows does not have a previous driver version saved. Proceed to the next method.
Method 2: Reinstall the Device Driver
Uninstalling the device forces Windows to completely reset and reallocate its hardware resources upon the next system boot.
Important Note: If you are uninstalling a Wi-Fi or network adapter driver, ensure you have an alternative way to access the internet (such as an Ethernet connection or another computer) to download drivers if Windows fails to reinstall them automatically.
- Open Device Manager.
- Right-click the problematic device (for example, your graphics card under the Display adapters category) and select Uninstall device.
- In the pop-up confirmation window, check the box to attempt driver removal and click Uninstall.
- Restart your computer. Windows will automatically attempt to reinstall a compatible driver during the boot process.
If the error persists, you will need to update your platform drivers manually.
Method 3: Update Chipset and Motherboard Drivers
Outdated chipset drivers are a common culprit behind resource allocation conflicts, as they control how Windows communicates with the underlying motherboard hardware.
- Identify the manufacturer and model of your motherboard or pre-built computer.
- Visit the official support website of your motherboard manufacturer (e.g., ASUS, Gigabyte, MSI) or CPU provider (Intel or AMD).
- Search for your specific model and download the latest Chipset drivers.
- Install the downloaded chipset drivers and restart your computer.
Updating the chipset drivers should resolve any underlying communication errors and allow Windows to properly map your hardware resources.
