In some cases, core.dll errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
How to Fix Core.dll Errors
Do not download core.dll from a “DLL download” website.
There are many reasons whydownloading a DLL file that way is a bad idea.

Restore core.dll from the Recycle Bin.
The easiest possible cause of a “missing” core.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 core.dll file.
If the DLL error happens when you use a particular program, reinstalling the program should replace the file.
Try your best to complete this step.
Reinstalling the program that provides the core.dll file, if possible, is a likely solution to this error.
Update the drivers for hardware devicesthat might be related to core.dll.
The core.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.
initiate the System File Checker commandto replace a missing or corrupt copy of the core.dll file.
If 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 setup.
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 core.dll related issues in the registry.
Perform a clean installation of Windows.
This will erase everything from thehard driveand install a fresh copy of Windows.
If none of the steps above correct the core.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 core.dll errors persist.
After a clean install of Windows, your DLL problem can only be hardware related.
Causes of Core.dll Errors
There are several ways core.dll errors can show up on your system.
These messages might appear while using or installing certain programs, or when Windows starts or shuts down.
Adobe Creative Cloud is one example of software that we know is associated with this file.