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GPU Optimization

How to Fix NVIDIA Code 21 Device Removal In Progress on Windows

NVIDIA Code 21 Device Removal In Progress occurs on Windows when loading dependency files or running system processes. Fix NVIDIA Code 21 with this step-by-step guide.

  • nvidia code 21
  • fix
  • troubleshooting
  • error
  • gpu-optimization

What Is NVIDIA Code 21 Device Removal In Progress?

The NVIDIA Code 21 error indicates a conflict in the system configuration layer, device driver bindings, or essential runtimes. Without resolving this issue, the affected system processes or games will crash on startup or fail to bind correctly.

Common Symptoms:

  • Boot sequence failure or blue screen checks.
  • Application error dialog boxes.
  • Direct3D device driver loading errors.

Step 1: Clean Install Display Drivers

Use Display Driver Uninstaller (DDU) in Safe Mode to clear conflicting driver files.

Step 2: Check PCIe Power Seating

Ensure the graphics card PCIe power connectors are securely plugged in.

Step 3: Extend Timeout detection settings

Adjust the TDR delay registry key to avoid system timeouts:

reg add "HKLM\System\CurrentControlSet\Control\GraphicsDrivers" /v TdrDelay /t REG_DWORD /d 8 /f

Verification and Validation

After executing the repair steps above, restart your system and attempt to launch the program or task that triggered the NVIDIA Code 21 error. Verify that the system registers 0ms lag and behaves cleanly.