How to fix
SDL2.dll missing or not found error
on Windows

Hello. I can't open certain apps because I receive an error that says SDL2.dll is missing from my computer. Is there a way to fix this?

The SDL2.dll file is a dynamic link library (DLL) that allows multimedia applications such as games and emulators to perform various writing operations. DLL files are useful because they contain code and data that can be shared between applications. This reduces the memory footprint of applications and increases their efficiency.

When the operating system is unable to locate the SDL2.dll file required by an application, the SDL2.dll missing or not found error in Windows occurs. This can be caused by a number of factors, including an outdated or corrupt SDL2.dll file, a virus or malware infection, a missing system file, or an issue with the application's installation.

This problem can affect users in a variety of ways, including the inability to run multimedia applications that require the SDL2.dll file, application crashes or freezing, and error messages displayed when attempting to launch the application.

To resolve the SDL2.dll missing or not found error, try reinstalling the application that requires the SDL2.dll file, running a virus scan to remove any malware or viruses, or repairing the Windows system files with the System File Checker tool. The specific solution, however, is dependent on the root cause of the problem and should be implemented with caution.

In this guide, you will find 6 steps that should help you fix SDL2.dll missing or not found error in Windows. You can also try using a system repair tool like [d1] that can fix most system errors, BSODs,[ref en-1] corrupted files, registry[ref en-2] issues, or clear cookies and cache[ref en-3] automatically. Otherwise, follow the step-by-step instructions below.

Solution 1. Fix Corrupted System Files

Use Command Prompt commands to repair system file corruption:

• Open Command Prompt as administrator
• Use the following command and press Enter:
  sfc /scannow

• Reboot your system
• If SFC returned an error, then use the following command lines, pressing Enter after each:
  DISM /Online /Cleanup-Image /CheckHealth
  DISM /Online /Cleanup-Image /ScanHealth
  DISM /Online /Cleanup-Image /RestoreHealth

Solution 2. Install Windows Updates

• Press the Windows key + R to open the Run box
• Type ms-settings:windowsupdate in the text box and press Enter
• Click the Check for updates button

• If a new update is available, click the Download & Install all button.
• Restart your computer after the process is finished and check to see if the problem is fixed

Solution 3. Reinstall the Affected Application

• Press the Windows key + R simultaneously to open the Run dialog box.
• Type appwiz.cpl in the text field of the Run dialog box.

• Hit the Enter key to open the Programs and Features window in the Control Panel.
• In the Programs and Features window, locate the application that is displaying the SDL2.dll error.
• Select the application and click the Uninstall button.
• Follow the on-screen instructions to complete the uninstallation process of the application.
• Once the application is uninstalled, open a reliable download source such as the official website or Microsoft Store.
• Download the application again from the source.
• Install the application on your system as per the on-screen instructions.

Solution 4. Perform a Malware Scan

It is possible that a malware infection may be the cause of the SDL2.dll missing or not found error in Windows. It is important to run a comprehensive security scan to rule out this possibility and ensure that the computer is not infected. This can help to prevent further issues with the Windows operating system and ensure that it is functioning properly.

If you have access to a security scanner, or if your organization pays for one, you can use it to scan your entire system to check for a virus infection. Otherwise, you can use Windows Defender to scan your system:

• Click on the Windows Start menu or press the Windows key on your keyboard
• Type Microsoft Defender in the search bar and click on Microsoft Defender Antivirus to open the application
• Click on the Virus & threat protection option in the left-hand menu
• Click on the Quick scan or Full scan option, depending on your preference

• If you choose Quick scan, Microsoft Defender Antivirus will scan the most vulnerable and commonly infected areas of your computer
• If you choose Full scan, Microsoft Defender Antivirus will scan your entire computer, including all files, folders, and programs
• Click on the Scan now button to start the selected scan type and wait for the scan to complete
• The time it takes will depend on the size of your hard drive and the number of files being scanned
• Once the scan is complete, you will be informed of any detected threats, and you can choose to quarantine or remove them
• If no threats are found, Microsoft Defender Antivirus will inform you that your device is secure

Solution 5. Use System Restore

System Restore is a feature in Microsoft Windows that allows users to revert their computer's state to a previous point in time. This can be helpful if you have made changes to your system that are causing problems.

• Press the Windows key + R on your keyboard to open the Run box.
• Type SystemPropertiesProtection and press Enter.
• Go to the System Protection tab.

• You will see the System Restore… button. Click it to run System Restore.
• Follow the prompts until you can select a restore point.
• Select the one you want (ideally before the issue started occurring) and go ahead with the process.

Solution 6. Repair Install Windows

• Visit the official Microsoft website to download Windows 11 or Windows 10 Installation Media
• Run the Media Creation Tool and select Create Installation Media for another PC

• Select your USB drive
• Let the Process complete of writing the Installation files to the USB drive
• Click Finish
• On the PC you wish to upgrade, Press Windows + E to open the File Explorer
• Open the Removable drive and click Setup.exe
• Accept the license terms on the next screen
• Confirm the Upgrade options – Files, apps and Settings are kept
• Click Install, and the upgrade should start