api-ms-win-security-provider-l1-1-0.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Meta Description: Discover information about api-ms-win-security-provider-l1-1-0.dll, a crucial Windows system file for security provider operations. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	64-bit (x64)	Compatible with only 64-bit Windows
File version	10.0.19041.1
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	✅ Have signed	File have signature, it is original file.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	11.5 kb.	11792 bytes.

Hashes:

MD5: aea763a0dc0152317be353e175a06282 ✅
SHA-1: d73bd7699f659474da4f1a4c2e1d7d1a61ec7ce2
SHA-256: 6e22552d89fe66d6612b06e2453efd8dd3bd645606945a3d5106799f63d6148c
SHA-512: e1c1c91184045d06511e4600829ad29c71bde9ca8c36f19947b38f363180adbe1933d5dd7143a96e8a7f4c82e5e1fdb84115df037a3f71e650afc0cdf1faf518

Digital file signature api-ms-win-security-provider-l1-1-0.dll ✅

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

To fix the api-ms-win-security-provider-l1-1-0.dll missing error without downloading third-party DLL files, you must repair or restore the file using Windows' built-in system repair utilities.

Method 1: Run System File Checker (SFC)

The System File Checker is a built-in Windows utility that scans your computer for missing or corrupted system files and restores them automatically from a local cached backup.

1. Press the Windows Key, type cmd, and right-click Command Prompt.
2. Choose Run as administrator.
3. Type the following command and press Enter:

   sfc /scannow

4. Wait for the process to hit 100% completion.
5. Restart your computer.

Method 2: Run DISM Tool

If SFC fails to fix the file, the Deployment Image Servicing and Management (DISM) tool will check the core Windows system health and repair local system images using your existing local recovery data.

1. Open Command Prompt as an administrator again.
2. Type the following command and press Enter:

   DISM /Online /Cleanup-Image /RestoreHealth

3. Once completed, run sfc /scannow one more time.
4. Restart your PC.

Method 3: Reinstall the Problematic Program

If this error only occurs when opening a specific game or app, the program may already have a backup copy of the DLL file located within its own installation files.

1. Open the Control Panel or Windows Settings.
2. Go to Apps & Features (or Uninstall a Program).
3. Find the app causing the error, click Uninstall, and follow the steps.
4. Reinstall the program using its original installer. This will re-register its built-in api-ms dependencies.

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📊 Diagnostics Tool: Verify Your api-ms-win-security-provider-l1-1-0.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:
api-ms-win-security-provider-l1-1-0.dll
Other versions:
️ api-ms-win-security-provider-l1-1-0.dll 10.0.19041.1 32-bit (x86)
Microsoft Corporation