How to Fix Winhttp.dll Not Found or Missing Errors

Winhttp.dll errors are caused by situations that lead to the removal or corruption of the winhttp DLL file.

The winhttp.dll file is associated with Microsoft Windows HTTP Services (WinHTTP).

In some cases, winhttp.dll errors could indicate a registry problem, a virus or malware issue or even a hardware failure.

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There are several different ways that winhttp.dll errors can show up on your computer. Here are some of the more common ways that you might see winhttp.dll errors:

Winhttp.dll error messages might appear while using or installing certain programs, when Windows starts or shuts down, or maybe even during a Windows installation.

The context of the winhttp.dll error is an important piece of information that will be helpful while solving the problem.

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The winhttp.dll error message could apply to any program or system that might utilize the file on any of Microsoft's operating systems including Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and Windows 2000.

Restore winhttp.dll from the Recycle Bin. The easiest possible cause of a "missing" winhttp.dll file is that you've mistakenly deleted it. If you suspect that you've accidentally deleted winhttp.dll but you've already emptied the Recycle Bin, you may be able to recover winhttp.dll with a free file recovery program.


Run a virus/malware scan of your entire system. Some winhttp.dll errors could be related to a virus or other malware infection on your computer that has damaged the DLL file. It's even possible that the winhttp.dll error you're seeing is related to a hostile program that's masquerading as the file.

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Use System Restore to undo recent system changes. If you suspect that the winhttp.dll error was caused by a change made to an important file or configuration, a System Restore could solve the problem.

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Reinstall the program that uses the winhttp.dll file. If the winhttp.dll DLL error occurs when you use a particular program, reinstalling the program should replace the file.
Update the drivers for hardware devices that might be related to winhttp.dll. If, for example, you're receiving a "The file winhttp.dll is missing" error when you play a 3D video game, try updating the drivers for your video card.

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Roll back a driver to a previously installed version if winhttp.dll errors began after updating a particular hardware device's driver.

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Run the sfc /scannow System File Checker command to replace a missing or corrupt copy of the winhttp.dll file. Since this DLL file is provided by Microsoft, the System File Checker tool should restore it.

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Install any available Windows updates. Many service packs and other patches replace or update some of the hundreds of Microsoft distributed DLL files on your computer. The winhttp.dll file could be included in one of those updates