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Qt5Core.dll Download


By landing on this page you are most probably trying to download the Qt5Core.dll DLL file to get rid of the error:

Windows Error - Qt5Core.dll

Error Icon

Unable to start program due to Qt5Core.dll being missing from your computer. Try reinstalling the program to fix the problem.


On this page, I have laid out the information you will need to know to understand what is causing this error as well as the versions of Qt5Core.dll which are sorted by age and type of operating system.

What is the Qt5Core.dll file?

The Qt development company creates libraries of code that give other developers a leg-up when it comes to designing UI elements.

In lamens terms this means that the Qt company provides a way for other companies to get their products to market quicker by providing ready-to-go interactive elements.

This method of “including” other people’s work in your own through a library called a DLL is common in modern software development and a great way to save on money and resources.

You will find software written by Qt in lots of different things, ranging from video games and desktop programs to infotainment systems built into modern cars.

A popular franchise of video games that relies on this DLL in order to run is Skyrim, the action role-playing game from Bethesda Works.

These games have many different DLL files that regularly go wrong and may also be missing from your systems such as Steam_api.dll, X3DAudio1_7.dll and Mfc140.dll.

Why do I need this file?

As mentioned above, this Qt5Core.dll file contains information that is used to display interactive elements on your computer screens such as beautiful menus and controls.

If you have a missing or corrupt copy of the file then when you launch a program or video game you could find an error reporting it missing.

Modern software checks to make sure everything it needs is present when launching and if these tests fail then you will quickly find out about it.

What you can do is download a fresh non-corrupt copy of the DLL from further down this page in the table listing the various versions.

It may not be a long-term solution but it will at least give you time to diagnose the greater issue that is preventing you from playing Skyrim.

Why is the Qt5Core.dll is missing error appearing?

A common cause of this error is that the company you have bought your PC from has forgotten to install the library.

On the other hand, if you have an older computer then it could be a sign of a more sinister issue in the form of a hardware or software fault.

A worst-case scenario is that you may have a virus lurking on your computer that is deleting important files and libraries to cause the user pain or even hold you to ransom.

The first and easiest solution to this issue is to re-install the Qt5Core.dll library from this page, then if unsuccessful try a new anti-virus program.

How do you fix the problem?

The simplest solution to fix the “Qt5Core.dll is missing” error and download the appropriate DLL file listed below.

After you have chosen the correct file and the download has finished you will need to put it in the target folder, as the warning message will let you know.

If you do not feel you are able to perform this task then you can download software that will try to automatically fix this for you by following these steps:

Method 1: (DIY) download/install DLL yourself

Underneath this block of text are the versions of the Qt5Core.dll that we have found and cataloged, choose the right version for your system then download and install.

Qt5Core.dll, available versions:

VersionDescriptionLanguage 
32/64 Bit (includes most recent)Auto FixU.S. English Download
32 Bit 5.8.0.0C++ application development framework.U.S. English Download
64 Bit 5.5.1.0C++ application development framework.U.S. English Download
32 Bit 5.5.1.0C++ application development framework.U.S. English Download
32 Bit 5.4.2.0C++ application development framework.U.S. English Download
32 Bit 5.3.2.0C++ application development framework.U.S. English Download
32 Bit 5.3.1.0C++ application development framework.U.S. English Download
32 Bit 5.2.1.0C++ application development framework.U.S. English Download
32 Bit 5.1.1.0C++ application development framework.U.S. English Download

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Which version of Qt5Core.dll do I choose?

Ideally, you will want to choose the most recent (highest version number) DLL file with the correct 32 or 64-bit label for your system.

Choosing a 64-bit version of the file will help ensure that your system can take advantage of the faster processing power available in your PC.

Where should I place the DLL once downloaded?

First, try placing the file into the folder where the program you are having problems with lives.

Usually, if you have an error telling you that this file is missing it will tell you where it is missing from.

What if I need to register the Qt5Core.dll file?

Once you have attempted the simplest solution of placing the DLL file into the target folder and found it hasn’t worked then you may have to register the change with Windows.

To do this you can save the DLL file to the C:WindowsSystem32 folder and then open a command prompt using admin rights, type “regsvr32 Qt5Core.dll” and run it.

Method 2: (Auto) Have a program do it for you

A program exists that will take the hard work out of fixing your missing Qt5Core.dll file problem called Auslogics.

The Auslogics suite of programs can keep your computer ticking by and ensure that the drivers and DLL files remain in working order.

41,835 Downloads

See more information about Outbyte and uninstall instructions. Please review the Outbyte EULA and Privacy Policy

Click "Download Solution" to get the PC tool that comes with Qt5Core.dll. The utility will automatically determine missing dlls and offer to install them automatically. Being an easy-to-use utility, it is a great alternative to manual installation, which has been recognized by many computer experts and computer magazines. Limitations: trial version offers an unlimited number of scans, backup, restore of your windows registry for FREE. Full version must be purchased.

It supports such operating systems as Windows 10, Windows 8 / 8.1, Windows 7 and Windows Vista (64/32 bit). File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

Method 3: (Semi-Auto) Use the system checker built-in admin tool to find a fix

Those familiar with the Windows operating system will know of the sfc/scannow file integrity check for important files.

You can run this tool by doing the following:

  • Start by launching the command line as an administrator (right-click to find the option) that you find in the search field using the keywords “command prompt”.
  • In the newly launched window enter “sfc / scannow” without the quotes and hit the enter key to run the command.
  • Now the program should launch and start working without any further input.
  • You will know when the program has finished running and has been successful when a dialog appears saying “Windows Resource Protection found corrupt files and successfully repaired them.”.

Hopefully, the system checker will notice that the Qt5Core.dll file is missing and automatically fix it for you.

Method 4: (Anti-Virus) Install a new anti-virus and see if that can find and fix the problem

If you have been using your computer for a while and noticed that the Qt5Core.dll file has disappeared randomly while it has worked before then this can be a sign of malware.

A malicious piece of software could have deleted it in order to cause mayhem or maybe to hold you ransom for a payment to fix it.

The simplest fix would be for you to use the anti-virus built into the operating system called Windows Defender.

Method 5: (Restore) Restore your system to a time before the problems began

Like rolling back the clock and traveling back in time, the System Restore process built into various Windows versions allows you to roll your computer back to a time when it worked fully.

This is useful if you have problems such as a missing Qt5Core.dll file on your system and don’t know how it was lost.

You can attempt this yourself very easily by doing the following:

  • Open the Start menu and launch the “Run” program by searching for it.
  • With the “Run” program waiting for a command enter “rstrui” without the quotes and hit enter to open the system recovery tool.
  • With the system recovery tool open you can choose a restore point to roll back to when you believe the computer was safe and worked fully.

Now when you fire your computer up again you will be able to find out if you went far back enough to when the Qt5Core.dll error did not appear.


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