NVVHCI Enumerator Driver

The NVVHCI Enumerator driver helps Windows recognize and enumerate virtual devices used by compatible NVIDIA software, allowing those components to communicate with the operating system. You may need it if Device Manager lists NVVHCI Enumerator as an unknown device, shows a driver warning, or an NVIDIA feature requires its supporting components to be reinstalled.

Key Features

• Virtual device recognition: Supports enumeration of NVIDIA virtual hardware components so Windows can identify them correctly.
• Software integration: Provides a supporting driver layer for NVIDIA software that depends on the NVVHCI Enumerator.
• Device Manager identification: Helps Windows associate the device with its correct driver instead of leaving it unidentified.
• Version-specific compatibility: Packages may target Windows 11, 10, 8, or 7; check the individual release rather than assuming one installer supports every system.

How to Install NVVHCI Enumerator Driver

1. Check your system and device. Confirm your Windows version and system architecture. In Device Manager, open the device’s Properties and check its hardware IDs under the Details tab.
2. Choose a matching package. Before starting an NVVHCI Enumerator driver download for Windows, verify that the package supports your hardware ID, operating system, and NVIDIA software. The latest version is only suitable if it meets those requirements.
3. Download from a trusted source. Use an official NVIDIA package or a verified device-manufacturer release when available. A free download should not require a paid driver-updater subscription.
4. Install the driver. Run the supplied installer and follow its instructions. If the package contains driver files instead, use Device Manager > Update driver > Browse my computer for drivers, then select the extracted folder.
5. Restart and verify. Restart if prompted, then check Device Manager for remaining warnings. If installation fails, recheck compatibility rather than forcing an unrelated driver.

Keep this component updated alongside the NVIDIA software that uses it. On Windows 10/11, check Windows Update and supported NVIDIA releases for applicable updates; on Windows 8 or 7, confirm that legacy support is explicitly listed. An update can address compatibility issues, but there is no need to replace a working driver with an unsupported release.

Common Issues and Fixes

• Install fails or shows Code 28/31: Install the NVIDIA vGPU host driver package that matches your vGPU manager and Windows build, run setup as administrator, and reboot. If setup blocks, remove older NVIDIA vGPU/display drivers first, then retry.
• NVVHCI Enumerator not detected: Confirm the GPU and platform support vGPU; enable VT-d/IOMMU, SR-IOV, and above-4G decoding in BIOS/UEFI, then attach the vGPU to the VM. Use Device Manager > Scan for hardware changes after the hypervisor starts the VM.
• Version conflict with NVIDIA display driver: Keep NVVHCI, vGPU manager, and guest display driver from the same NVIDIA vGPU release. Mismatched versions can cause Code 43 or device resets; uninstall the old package, reboot, and install the matching set.