Repair QtCore4 DLL Error – How to Fix QtCore4 DLL Not Found Error?

If you receive QtCore4.dll error messages when running a game or a program, you must be eager to find out the solutions to fix the error. Usually, the error message says that the required DLL is not found on your computer so the application cannot start. It is very frustrating to experience such errors, isn’t it? Thankfully, here are several solutions which can help you fix QtCore4.dll error effectively.

Something about QtCore4.dll:

It is a dynamic link library that used by many applications on your PC. The file is part of the development environment for a number of applications, including Photoshop Elements. Many PC games also rely on this DLL file to work properly. This module can make sure the relevant applications run correctly. If the file is missing from your computer, the error will occur when it is required by the applications.

What are the common error messages that related to the file?

“The program can’t start because QtCore4.dll is missing from your computer. Try reinstalling the program to fix this problem.”

“QtCore4.dll is missing.”

There are many other messages that state the same problem similar to the two error messages above.

What are the causes of the error?

1. The DLL file is deleted mistakenly by the antivirus software or misplaced by you accidently. If it is not in the default path, the error will occur.
2. The programs that use this file are damaged. If the applications are not installed on your computer probably, the error also shows up.
3. Cyber threats cause the error. If some viruses, Trojans or other threats invade your PC, they can report such error messages when you start the programs to disguise themselves.
4. There are registry errors on your computer. The invalid registry entries lead to the DLL error.

How to deal with the error?

Method1. Replace the damaged or missing QtCore4.dll.

You can check if the DLL file is still found on your computer. If the file is still on your computer, copy it into C:\Windows\system32. If you can’t find it on your hard drive, you can download one from the Internet. Go to a trusted website and download a compatible version of the file and save it to the default folder. Then reboot your computer.

Solution2. Reinstall the program that causes the error.

If the error only appears when you open a program that has been installed lately, it is likely that the program is responsible for the error. Try reinstalling the program may fix the error. If not, try re-downloading and reinstalling the program.

For Windows XP users, follow the steps below to remove the program.

Step1. Click Start, click Control Panel, and then double-click onAdd/Remove Programs.

Step2. Scroll down and find the program you want and click Removebutton to uninstall it.

Then reinstall it on your computer and see if the error has been solved.

Solution3. Scan your entire system with the antivirus program.

Sometimes, your computer is infected with viruses or other cyber threats without your knowledge. They may cause many errors on your PC.  You’d better run the antivirus software to perform a full scan of your computer system. If any threat is found, you should delete it immediately. It is suggested to keep your security tool updated to protect your PC from cyber attacks.

Solution4. Fix Windows registry errors.

Occasionally, the error is caused by the invalid registry entries. Registry stores the data of applications on your computer. If something goes wrong with registry, the errors like DLL errors or exe errors may occur. So you can try fixing the registry errors to solve the problem. To manage it, download and install a professional registry cleaner tool on your PC. With it, all the registry errors and other PC errors on your computer can be detected and fixed safely and quickly.

In a word, when you are facing this frustrating error, you can follow the solutions listed above to fix QtCore4.dll problem. It is recommended that you use a professional registry cleaner tool to repair the system registry issues automatically. It is not suggested that you make modifications on Windows registry manually. If any valid registry entry is deleted, the system may even fail to work.