In some cases, iertutil.dll errors could indicate a registry problem, a virus or malware issue, or even a hardware failure.
Iertutil.dll Errors
There are several ways that iertutil.dll errors can show up on your computer. Here are some of the more common ways that you might see iertutil.dll errors:
Iertutil.dll Not FoundThis application failed to start because iertutil.dll was not found. Re-installing the application may fix this problem.Cannot find [PATH]\iertutil.dllThe file iertutil.dll is missing.Explorer.exe- Unable To Locate Component : This application has failed to start because iertutil.dll was not found.Cannot start [APPLICATION]. A required component is missing: iertutil.dll. Please install [APPLICATION] again.
Iertutil.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 iertutil.dll error is an important piece of information that will be helpful while solving the problem.
How to Fix Iertutil.dll Errors
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. The idea here is to find a working copy of the file and place it in the System32 folder. You can do this a number of ways, but the simplest is to search for it in the C:\Windows\system32\dllcache\ folder. If so, access Task Manager’s Run new task option (this is in the File menu in some versions of Windows), and select Browse to check the \system32\ folder to see if the file is truly missing. If it is, check that the \system32\dllcache\ folder has a copy. If it does, copy it by right-clicking or tapping-and-holding down on the file, and then paste it in \system32. If you can’t find the file there, copy it from a working computer to a flash drive, and then copy the DLL file off of the flash drive to the C:\Windows\system32\ folder. Again, if File Explorer isn’t working, you can use Task Manager to do the copying and pasting. If File Explorer is visible and working fine, but the errors are still happening, try to use a file search tool like Everything to quickly search through all the files on your computer. Then, copy and paste the DLL file to the appropriate folder as mentioned above. If the hardware fails any of your tests, replace the memory or replace the hard drive as soon as possible.
