The Qt5Widgets.dll missing or not found error may cause due to corrupted or being incorrectly installed file. DLLs(Dynamic Link Libraries) are shared libraries in Microsoft Windows, implemented by Microsoft Corporation. DLL files are just as important as files with a .exe extension and not all DLL files can be Implemented without a .exe extension. We often see the qt5widgets.dll missing or not found error when we are running a program. The error message typically is:
The program can’t start because Qt5Widgets.dll is missing from your computer.
What is Qt5Widgets.dll?
The Qt5Widgets.dll file is a C++ Application Development Framework for Windows OS that is developed by The Qt Company Ltd. If it goes missing or fails to load, then several companies that depend on it will fail to start.
Fix Qt5Widgets.dll missing or not found error
Here are some steps to fix The program can’t start because Qt5Widgets.dll is missing from your computer error.
- Reregister the qt5widgets.dll file
- Reinstall the program
- Scan your System for Malware
- Run the System File Checker(SFC) command
- Perform System Restore.
The program can’t start because Qt5Widgets.dll is missing from your computer
1] Reregister the qt5widgets.dll file
Open an elevated command prompt and execute the following command to re-register the dll file:
Hopefully, the above step will resolve the problem.
2] Reinstall the program
If registering the DLL file does not help, then you should download the latest version of the program and reinstall it. By doing this, the concerned dll file will get automatically installed and registered.
3] Scan your System for Malware
Sometimes, malware may enter our system and cause such issues. Here are the following steps for scanning the system.
- Click on the Start
- Type Windows Security in the search box
- Open Virus & threat protection
- Now, click on Quick scan
You could also run a second opinion scan using a free portable antivirus software.
3] Run the System File Checker (SFC) command
The System File Checker is a utility in Windows that allows users to scan for corruption in Windows system files and restore them. SFC command scans your system files and repair missing or corrupted system files.
- Click on the Start
- Type Command Prompt in the search box and select Run as administrator
- Now, in the command prompt type the following command and hit Enter
After typing the command, the system will check and repair the corrupted files.
4] Perform System Restore
System Restore is one of the most valuable features for solving Windows security errors including the qt5widgets.dll error. After system restore, your computer will boot up with the restored version of Windows, and the issue would be resolved. Follow the below steps to Restore the computer.
- First of all, press the Window + R to open Run
- Type rstrui and click OK
- You may choose the Recommended restore or a different one if you wish.
- Now, click Next to start the process.
Hopefully, the above steps will fix the qt5widgets.dll missing or not found error.
How do I repair DLL file?
Here you can use these steps to repair DLL files.
- Click on Start
- Type the Command Prompt in the search box and hit Enter
- Type the command sfc/scannow and hit Enter
- Wait till the scanning process is completed. After completion, restart your computer and your DLL file will be repaired.
Is DLL file safe?
Files downloaded by us from DLL download sites may be infected with viruses. There is no guarantee that the file you just download is free from viruses. So, take the safe route and simply avoid downloading anything from these DLL download sites. The best options are to reinstall the program giving problems or run SFC. If it is an OS dll file that is giving errors, you can download Windows OS files from Microsoft. This is a safe option.