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api-ms-win-downlevel-advapi32-l1-1-1.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026) The file was obtained from the pack Windows 7

⚠️ Important Notice: Meta Description: Discover information about api-ms-win-downlevel-advapi32-l1-1-1.dll, a crucial system file for Windows API 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 date16.07.2016 04:25:54
File version10.0.14393.0
Antivirus scan✅ Clean No viruses detected.
Digital signature🟡 Not signedSignature missing. The file may have been modified.
Hash Integrity✅ MD5: VerifiedFile Hash protection is missing.
File size11.5 kb.11776 bytes.

Hashes:

MD5: 151acb90396733c578d85da480036346 ✅
SHA-1: b2ec4d8ecee46fa296f71498bdb059746f18a83c
SHA-256: b6116fba79e6c230e34e4e5881b353d143d292f3c0b07dc5caa6441a403b616c
SHA-512: d6cf99fd36f6308e27d4a333c22a4cd5d42aad1007689a3791e6e10fc805ad3ed205f5f48055d6ef3e98f24000547070b177027289c5dcef0f5b6a6fd83f3f89

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

api-ms-win-downlevel-advapi32-l1-1-1.dll Information and Fix Guide

The api-ms-win-downlevel-advapi32-l1-1-1.dll file is a system component used by Windows to ensure backward compatibility for applications.

File Description

  • Name: api-ms-win-downlevel-advapi32-l1-1-1.dll
  • Type: Dynamic Link Library (DLL)
  • Function: It is an API Set stub DLL. It redirects advanced Windows API functions (like registry manipulation and security management) to the correct modern system libraries.
  • Significance: Legacy software and games rely on this file to run on newer Windows versions.

Standard File Location

This file is a core component and resides in the main system directories:

  • For 64-bit systems (64-bit files): C:\Windows\System32
  • For 64-bit systems (32-bit files): C:\Windows\SysWOW64
  • For 32-bit systems: C:\Windows\System32

How to Fix the Error Without Downloading

Downloading DLL files from third-party websites poses a severe security risk. Use these native built-in Windows tools to repair the missing or corrupted file safely.

1. Run the System File Checker (SFC)

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

  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 process to hit 100% completion.
  6. Restart your computer.

2. Run the DISM Tool

If SFC fails to fix the file, the Deployment Image Servicing and Management (DISM) tool will fetch clean system files from Windows Update.

  1. Open Command Prompt as an administrator.
  2. Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
  3. Allow the tool to repair the system image.
  4. Run sfc /scannow one more time after DISM finishes.
  5. Restart your computer.

3. Install Pending Windows Updates

Microsoft frequently patches API compatibility sets via official Windows updates.

  1. Press Windows Key + I to open Settings.
  2. Click on Update & Security (or Windows Update).
  3. Click Check for updates.
  4. Install all critical and optional updates.
  5. Reboot your system.

4. Reinstall the Software Causing the Error

If the error only occurs when opening a specific app, that app's installation is likely broken. Reinstalling it will restore its local dependencies.

  1. Press Windows Key + R, type appwiz.cpl, and press Enter.
  2. Find the problematic application.
  3. Right-click it and choose Uninstall.
  4. Reinstall the application using its official installer.

To narrow down the troubleshooting, let me know:

  • What specific application or game triggers this error?
  • Which Windows operating system version are you currently running?

I can provide targeted steps for that exact software configuration.

📊 Diagnostics Tool: Verify Your api-ms-win-downlevel-advapi32-l1-1-1.dll File

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Connected files:
api-ms-win-downlevel-advapi32-l1-1-1.dll
Other versions:
️ api-ms-win-downlevel-advapi32-l1-1-1.dll 10.0.14393.0 32-bit (x86)