wlanapi.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Optimize your wireless network with wlanapi.dll—essential for managing wireless LAN connections on Windows. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	31.4 kb.	32186 bytes.

Hashes:

MD5: ec398de67564ee1601719234e04ff676
SHA-1: 9037f3e92c73e79c48f3e4e42f58822630a28548
SHA-256: 65c1390f9c1d78d53f7e482322b68edcf1a072755b9d3cc663741925aecf9330
SHA-512: 298095cd6691e04411764c8be7263455a65b2e1cd5ea0465a74cd416ccf537208ac517228146ee2e199f5245da61f81921abbdabcd22d62c3a10389ba231426a

Description of wlanapi.dll

Name: Wireless LAN API
Function: Enables wireless network management.
Purpose: Configures Wi-Fi profiles and connections.
Developer: Microsoft Corporation.
Type: Dynamic Link Library (DLL) file.

Standard File Location

64-bit systems: C:\Windows\System32
32-bit systems: C:\Windows\System32
64-bit (32-bit copy): C:\Windows\SysWOW64

How to Fix wlanapi.dll Errors Without Downloading

1. Enable Wireless Networking Feature (Windows Server Only)

Open Server Manager.
Click Add Roles and Features.
Advance to Features section.
Check Wireless LAN Service.
Click Install and restart.

2. Run SFC and DISM Tools

Press Win + X.
Select Terminal (Admin) or Command Prompt (Admin).
Type sfc /scannow and press Enter.
Wait for the scan to finish.
Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
Restart your computer.

3. Update Network Drivers

Right-click the Start Menu.
Select Device Manager.
Expand Network adapters.
Right-click your Wi-Fi adapter.
Select Update driver.
Choose Search automatically for drivers.

4. Perform a System Restore

Type Create a restore point in Windows search.
Click the System Restore button.
Select a date before the error occurred.
Follow the prompts to finish.

5. Install Pending Windows Updates

Open Windows Settings (Win + I).
Click Windows Update.
Click Check for updates.
Install all available updates.
Restart your system.

If you are still experiencing issues, tell me:

What is the exact error message on your screen?
What operating system version are you running (e.g., Windows 10, 11, Server)?
Did the error happen after a specific update or software install?

📊 Diagnostics Tool: Verify Your `wlanapi.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:
️ wlanapi.dll 10.0.19041.5915 32-bit (x86) | ️ wlanapi.dll 10.0.19041.5915 64-bit (x64)
Similar files:
️bcmwlanapi.dll | ️wlanapi.dll.mui