As the error message says failed to load steamui.dll, which simply means that it gets corrupted or missing. If it gets corrupted due to the antivirus software or a third-party application, you will need to restore it in order to run Steam without any error message. It is also possible that this error message is due to corrupted system files. Having corrupted system files might lead Windows not to load DLL files. A DLL file contains a piece of code that is designed to execute a specific task. Another possible reason is corrupted Steam cache data. Even though cache data is just temporary data, it can lead users to this error message.

1. Delete and Restore steamui.dll

Oftentimes, this error can occur due to a damaged steamui.dll file. So the best way to start troubleshooting is by restoring the steamui.dll file to fix this issue. In this solution, you need to delete the Steamui.dll file and restore the file by running the Steam.exe file, which might fix this error. Follow the steps to restore the steamui.dll file:

2. Run SFC or DISM commands

If this error occurs due to the corrupted system files, then running the DISM and SFC commands might help fix this issue. SFC, or System File Checker, is an inbuilt troubleshooting utility that users can use to fix corrupted system files, including DLL files. DISM, or Deployment Image Servicing and Management, is also a utility that users can use to restore Windows images. Hence, follow the steps to fix the system files:

3. Delete the Steam folder from the Appdata

Deleting the Steam folder from the AppData clears the cache, configuration, cookies, local storage, and session storage. Removing the Steam folder should fix this issue if the Steam AppData folder contains any corrupted cache files. We have given instructions to delete the Steam folder:

4. Reinstall the Steam application

If none of the methods have worked, you can try reinstalling the Steam application to replace the Steamui.dll file. If the Steamui.dll file is corrupted, you will be able to fix it by reinstalling the application. Follow the steps:

5. Use a System Restore

So far, we have tried all the methods to restore or repair the Steamui.dll file. However, if the error persists, it means the issue is due to a problem with your Windows. In this case, you can try restoring the Windows using the system restore utility, which takes the Windows back to a state when it is working fine. If you are familiar with system restore, you might have created a restore point, but if you did not create any restore point in the past, skip this method and move on to the last one.

6. Reset your Windows

If you don’t have a restore point, resetting the Window might be your last option. Remember, you will not lose your data if you choose to reset your Window without losing the data. However, you will lose applications and drivers installed on your computer, follow the steps and restore your Windows to fix this issue.

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