mlx4nd_coinstaller.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: dll for NVIDIA Mellanox drivers installation. Essential for network card compatibility. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	64-bit (x64)	Compatible with only 64-bit Windows
Creation date	23.12.2012 18:36:53
File version	4.3.11897.0
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	9 kb.	9216 bytes.

Hashes:

MD5: f45c52351212a34d4f04f2e4c1957040 ✅
SHA-1: 8348bb93283e547c93f259fe76dc41e17f1bdc3a
SHA-256: e604234c59cec8f069df6de1fa3b9d056f692fdb1ab98d72d03a1c4b10795697
SHA-512: 85a13c6e687121ab265ec8678df22ed2cf155e10aac887a1a0a69f830e51a122886349616d2cb61a20c6bdb6f8dd9e756aaaac4c725d0cefc46a195e3dd62a5c

✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.

File Description and Location

File Name: mlx4nd coinstaller.dll
Description: Mellanox ConnectX Network Adapter Co-installer.
Purpose: This driver-related file helps install Mellanox network adapters.
Standard Location: C:\Windows\System32\ or inside specific subfolders of C:\Windows\System32\DriverStore\FileRepository\.

How to Fix mlx4nd coinstaller.dll Errors Without Downloading

Do not download this file from random DLL websites, as they often contain malware. Use these official Windows built-in methods instead.

1. Run the Deployment Image Servicing and Management (DISM) Tool

DISM repairs corrupt Windows system images using official Windows Update files.

Right-click the Start button.
Select Command Prompt (Admin) or Windows Terminal (Admin).
Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.
Wait for the process to complete successfully.

2. Run the System File Checker (SFC)

SFC scans all protected system files and replaces corrupted ones with a cached copy.

Keep the Admin Command Prompt open.
Type sfc /scannow and press Enter.
Restart your computer after the scan finishes.

3. Reinstall Mellanox Network Drivers

Since this file belongs to Mellanox network card drivers, reinstalling the hardware driver fixes the issue.

Right-click the Start button and select Device Manager.
Expand the Network adapters section.
Right-click your Mellanox ConnectX device.
Select Uninstall device.
Check the box that says "Attempt to remove the driver for this device" if visible.
Click Uninstall.
Restart your PC. Windows will automatically reinstall the base driver upon boot.

4. Use Windows Check Disk Tool

File errors can occur due to hard drive sector corruption.

Open the Admin Command Prompt again.
Type chkdsk C: /f /r and press Enter.
Type Y to schedule the volume to be checked on the next restart.
Restart your computer to let the disk check run.

📊 Diagnostics Tool: Verify Your `mlx4nd coinstaller.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
msvcrt.dll
├── KERNEL32.dll
├── WS2 32.dll
└── mlx4nd coinstaller.dll