This file is associated with Microsoft’s Desktop Window Manager.

Dwmapi.dll Errors

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

Dwmapi.dll Not FoundThis application failed to start because dwmapi.dll was not found. Re-installing the application may fix this problem.Cannot find [PATH]\dwmapi.dllThe file dwmapi.dll is missing.Cannot start [APPLICATION]. A required component is missing: dwmapi.dll. Please install [APPLICATION] again.

Dwmapi.dll error messages might appear while using or installing certain programs, when Windows starts or shuts down, or even during a Windows installation. The context of the dwmapi.dll error is an important piece of information that will be helpful while solving the problem. Dwmapi.dll errors could be seen in Windows 11, Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, or Windows 2000.

How to Fix Dwmapi.dll Errors

Follow these steps in order to troubleshoot the problem:

Need More Help?

If you’re not interested in fixing this problem yourself, see How Do I Get My Computer Fixed? for a full list of your support options, plus help with everything along the way like figuring out repair costs, getting your files off, choosing a repair service, and a lot more. If you suspect that you’ve accidentally deleted dwmapi.dll, but you’ve already emptied the Recycle Bin, you may be able to recover it with a free file recovery program. Just make sure you’re confident that you deleted the file (as opposed to your AV program), and that it was working properly before you did that. %windir%\WinSxS\amd64…\dwmapi.dll can be copied to %windir%\System32. Or: %windir%\WinSxS\x86…\dwmapi.dll can be copied to %windir%\SysWOW64.