If you’re seeing a message like “A driver cannot load on this device” and it points to cpuz146_x64.sys or cpuz136_x64.sys, you’re not alone. This error often appears when software such as CPU-Z, Corsair iCUE, or Corsair Link 4 is installed on your Windows 11 system.
In this guide, we’ll show you how to fix the issue by removing the incompatible software.
What Causes This Error?
The error is typically triggered by the Windows Core Isolation security feature, which blocks older or non-compliant drivers from loading. In this case, CPU-Z or Corsair-related drivers (cpuz146_x64.sys or cpuz136_x64.sys) are being flagged as unsafe or incompatible.
Steps to Fix the Error
Step 1: Open Installed Apps
- Click the Start Menu (Windows icon) on the taskbar.
- Go to Settings.
- Navigate to Apps > Installed Apps.
Step 2: Uninstall Problematic Software
- Look for any of the following in the list:
- CPU-Z
- Corsair iCUE
- Corsair Link 4
- Click the ellipsis (⋮) next to the app name.
- Select Uninstall.
- Confirm the action by clicking Yes when prompted to remove all components.
Step 3: Restart Your Computer
- Click Start > Power Icon > Restart.
- After the reboot, the driver loading error should be resolved.
Tip
If you need monitoring or overclocking tools, look for newer versions or alternatives that are fully compatible with Windows 11 and its security requirements.
FAQs
What is cpuz146_x64.sys or cpuz136_x64.sys?
These are driver files used by CPU-Z and some Corsair software to monitor system hardware. Windows 11 may block them if they don’t meet modern security standards.
Is it safe to uninstall CPU-Z or Corsair Link?
Yes. These tools are optional. Removing them won’t affect your system’s core functionality.
Can I fix the error without uninstalling the software?
In most cases, no. You’ll need to uninstall the software or wait for an updated driver version that’s fully compatible with Windows 11 security policies.
Will turning off Memory Integrity help?
Disabling Core Isolation > Memory Integrity can bypass the error, but it weakens your system’s security. Uninstalling the incompatible software is the safer fix.
Conclusion
To fix the cpuz146_x64.sys or cpuz136_x64.sys error in Windows 11, the simplest solution is to uninstall CPU-Z or Corsair-related software. A quick restart afterward should resolve the issue. For long-term compatibility, always ensure your tools are updated to support Windows 11’s security features.
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