In some cases, these errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
How to Fix Wlanapi.dll Errors
Don’t download wlanapi.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file that way is a bad idea.
Restore wlanapi.dll from the Recycle Bin.
The easiest possible cause of a “missing” wlanapi.dll file is that you’ve mistakenly deleted it.
activate the Wireless LAN serviceif you’re using a Windows Server operating system.
Reinstall the program that uses the file.
Update the drivers for hardware devicesthat might be related to wlanapi.dll.
Run a virus/malware scan of your entire system.
Use System Restore to undo recent system changes.
fire off the sfc/scannow System File Checker commandto replace a missing or corrupt copy of the wlanapi.dll file.
Since this DLL file is provided by Microsoft, theSystem File Checkertool should restore it.
Install any available Windows updates.
Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your gear.
The wlanapi.dll file could be included in one of those updates.
Test your memoryand thentest your hard drive.
If the hardware fails any of your tests,replace the memoryorreplace the hard driveas soon as possible.
Repair your installation of Windows.
Use a free registry cleanerto repair wlanapi.dll related issues in the registry.
We rarely recommend the use of registry cleaners.
Perform a clean installation of Windows.
This will erase everything from the hard drive and install a fresh copy of Windows.
If none of the steps above correct the wlanapi.dll error, this should be your next course of action.
All the information on your hard drive will be erased during this step.
Troubleshoot for a hardware problemif any wlanapi.dll errors persist.
After a clean install of Windows, your DLL problem can only be hardware related.
Causes of Wlanapi.dll Errors
There are several ways that wlanapi.dll errors can show up on your machine.
Wlanapi.dll error messages might appear while using or installing certain programs, or when Windows starts or shuts down.
VPNs are one example.
