A troubleshooting guide for winhttp.dll errors
This file is associated with Microsoft Windows HTTP Services.
WinHTTP is used by server applications that communicate with HTTPservers.
you’ve got the option to read more about how it’s used onMicrosoft’s About WinHTTP page.
How to Fix Winhttp.dll Errors
Do not download winhttp.dll from a “DLL download” website.
There are manyreasons why downloading a DLL file is a bad idea.
Restore winhttp.dll from the Recycle Bin.
The easiest possible cause of a “missing” winhttp.dll file is that you’ve mistakenly deleted it.
Run a virus/malware scan of your entire system.
Use System Restore to undo recent system changes.
Reinstall the program that uses the winhttp.dll file.
Try your best to complete this step.
Reinstalling the program that provides this DLL file, if possible, is a likely solution to this error.
Update the drivers for hardware devicesthat might be related to this file.
The winhttp.dll file may or may not be related to video cardsthis was just an example.
The key here is to pay very close attention to the context of the error and troubleshoot accordingly.
execute the sfc /scannow System File Checker commandto replace a missing or corrupt copy of the winhttp.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 rig.
The winhttp.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 freeregistry cleanerto repair issues in the registry.
We rarely recommend the use of registry cleaners.
Perform a clean installation of Windows.
This erases everything from thehard driveand installs a fresh copy of Windows.
If none of the steps above correct the error, this should be your next course of action.
All the information on your hard drive will be erased during a clean install.
Troubleshoot for a hardware problemif any winhttp.dll errors persist.
After a clean install of Windows, your DLL problem can only be hardware related.
Need More Help?
In some cases, these errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
There are several ways these errors can show up on your setup.
The context of the error is an important piece of information that will be helpful while solving the problem.
