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ntlmshared.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover the essential functions of ntlmshared.dll and its role in network authentication processes. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:other️ Not detected
Antivirus scan✅ Clean No viruses detected.
Digital signature🟡 Not signedSignature missing. The file may have been modified.
Hash Integrityℹ️ UnverifiedFile Hash protection is missing.
File size15.1 kb.15439 bytes.

Hashes:

MD5: 32e22140418dd718cb32ea2460024508
SHA-1: a0d4ce1280609dca40cb8b74f1e8a9a52cd7fa3c
SHA-256: 25325d46a3a00378a977d2545155cbf38d3e94e0375b7274ab588496c01ec22b
SHA-512: c6a9215d2c821ddc575255b39db1b51eb5e1446b7ef304ecf7fd7c86cbdbec8bf54994eff45fb564d7410fba4ca4ea566e866f0ac8c15fd95561bacd7a985f6e

How to Fix ntlmshared.dll Errors Without Downloading the File

You can fix ntlmshared.dll errors using built-in Windows tools. Downloading individual DLL files from third-party websites is unsafe and can introduce malware.

Follow these step-by-step methods to repair the file safely.

Method 1: Run SFC and DISM Scan

Windows has built-in tools to detect and replace corrupted system files automatically.

  1. Press the Windows Key.
  2. Type cmd.
  3. Right-click Command Prompt and select Run as administrator.
  4. Type sfc /scannow and press Enter.
  5. Wait for the scan to finish.
  6. Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
  7. Restart your computer.

Method 2: Re-register the DLL File

If the file exists but Windows cannot read it, re-registering it via the Command Prompt can fix the link.

  1. Open Command Prompt as an administrator (see Method 1).
  2. Type regsvr32 /u ntlmshared.dll and press Enter to unregister the file.
  3. Type regsvr32 ntlmshared.dll and press Enter to re-register the file.
  4. Restart your PC.

Method 3: Use Windows Update

Missing system updates can cause DLL conflicts. Installing the latest updates often restores missing Microsoft files.

  1. Press Windows Key + I to open Settings.
  2. Click on Update & Security (or Windows Update on Windows 11).
  3. Click Check for updates.
  4. Install all available updates and restart your device.

Method 4: Perform a System Restore

If the error started recently, you can roll your system back to a time when it worked correctly.

  1. Type Create a restore point in the Windows search bar and click it.
  2. Click the System Restore button.
  3. Choose a date before the error started appearing.
  4. Follow the on-screen prompts and let Windows restart.

📊 Diagnostics Tool: Verify Your ntlmshared.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.

Other versions:
️ ntlmshared.dll 10.0.19041.5794 32-bit (x86) | ️ ntlmshared.dll 10.0.19041.5794 64-bit (x64)