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Summary :

failed to load steamui.dll

Many users reported that they encounter the “Failed to load steamui.dll” error when opening Steam or playing games on Steam. It is annoying you fail to start the application because of it. You can try the 10 methods provided by MiniTool to fix the vexing error.

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What Causes Steam Failed to Load Staemui.dll

Steamui.dll is an important file in Windows OS that enables your programs and services to run properly. According to the reports we gathered, Steam failed to load steamui.dll error may happen to any programs that require the file or operating systems including Windows 10/8/7.

 failed to load steamui.dll

What causes this error? The most common reason is that your Stamui.dll file is missing or gets corrupted. There are several possible causes of Steam failed to load steamui.dll error as follows.

  • You delete the steamui.dll file accidentally.
  • Steam needs device drivers to run. If you are using the outdated device driver, you might encounter the steamui.dll error.
  • The hardware failures like hard disk and RAM memory are also responsible for the failed to load steamui.dll fatal error.
  • There is a virus or other malware on your system that damages the steamui.dll file.

Now, let’s see how to fix the Steam fatal error. Here we recommend you try the following methods one by one in order to get rid of the error.

Tip: If you are not able to access Windows normally due to the “Steam fatal error failed to load steamui.dll”, you need to start your computer in Safe Mode to complete the following methods.

Fix 1. Restore the Missing Steamui.dll File

Note: This method is available only if you delete the steamui.dll file mistakenly and it works properly before you do.

If you mistakenly remove the steamui.dll file, the easiest and quickest way is to restore the file from the Recycle Bin. You just need to open your Recycle Bin on the desktop, and then right-click the deleted file and select Restore.

However, if you have already emptied the Recycle Bin, professional recovery software may be your best choice. Here it is highly recommended that you use MiniTool Partition Wizard. This is a professional data recovery tool trusted by millions of users around the world.

select the partition you want to recover and click Data Recovery

Fix 2. Delete the Libswscale-3.dll File and Staemui.dll File

Sometimes, the “failed to load steamui.dll Steam fatal error” may not indicate that the file is really missing. It is just because the libswscale-3.dll and steamui.dll file get crashed.

For this situation, you can delete them and Steam will automatically replace the files with new ones when you run Steam next time. Here’s how:

Step 1. Right-click the Steam on your desktop and select Properties.

Step 2. Go to the Shortcut section and click Open File Location on the bottom of the window.

click Open File Location

Step 3. Then you will open the folder of Steam. Find the libswscale-3.dll and SteamUI.dll and press Delete key on your keyboard.

Step 4. Restart your Steam and see if the error still persists.

Fix 3. Uninstall and Reinstall Steam

If you encounter the “Steam fatal error failed to load steamui.dll” when trying to start Steam, you can try uninstalling Steam from your computer and then reinstall it. After that, the corrupted steamui.dll file will be replaced with a new one.

Step 1. Press Win + R keys to open the Run box. Then type appwiz.cpl in it and hit Enter.

type appwiz.cpl in the run box

Note: Before you do, please back up the Steamapps folder because you need to use it later. Usually, you can find this folder in C:\Program Files (x86)\Steam\Steamapps.

Step 2. Find the Steam in the list, and then right-click and select Uninstall.

Step 3. After the uninstallation completes, download the latest version of Steam and reinstall it on your computer.

Step 4. Move the Steamapps folder you have backed up to the Steam directory. Then run Steam again and check if the error disappears.

Fix 4. Clear Download Cache for Steam File

Some users reported that they resolved the steamui.dll error simply by clearing the download cache. This is because the method is often used to solve the problems with games that fail to download and start.

Besides, this method won’t affect your currently installed games when you log into your Steam afterward. So, you can try it without concern.

Step 1. Open your Steam client, and then navigate to Steam > Settings from the top left client menu.

Step 2. In the Setting window, navigate to the Download tab on the left and click Clear Download Cache on the left pane.

click Clear Download Cache

Step 3. Click OK to confirm this action and you will need to login to Steam again.

confirm to clear download cache

Step 4. Restart your computer to save this change and see if you have resolved the Steam fatal error failed to load steamui.dll. If not, just move ahead.

Fix 5. Update Your Device Driver or Roll Back Your Driver to Previously Installed Version

The outdated device drivers can trigger various problems as exeplorer.exe system call failed, the steamui.dll error and so on. For this problem, you can try updating the device driver. Here is a quick guide for you.

Step 1. Open the Device Manager via the search box.

Step 2. In the new window, expand the Display adapters to find your device driver.

Step 3. Double click the device driver to open its Properties. In the pop-up window, navigate to the Driver tab and click Update Driver button.

click Update Driver button

Step 4. Then you have 2 options to update your device driver: automatically or manually. Choose one according to your needs. After you finish the update, check if the problem is resolved.

search for driver software

If the steamui.dll error just happened after you updated a particular hardware device driver, you can click Roll Back Driver to a previously installed version.

Fix 6. Run System Restore Point to Undo Recent System Changes

Some users find they fail to load Steam after updating their Windows. Probably this is because the updated features or configurations are not compatible with Steam. You can restore your system to undo the recent changes if you created a System Restore point.

Step 1. Open your Control Panel. Then set the View by as Category and click System and Security.

click on System and Security

Step 2. In the new window, click the System tab.

click System tab

Step 3. Select System protection on the left panel, and then you will open the System Properties window. Click System Restore.

click System Restore

Step 4. Check the Show more restore points. Select the Restore point you prefer in the list and click the Next button.

select system restore point you prefer

Step 5. Click Finish to confirm the restore.

click Finish to apply the system restore

After you have restored the system to an earlier date, see if the error is resolved.

Fix 7. Re-register the Steamui.dll File

Re-registering Steamui.dll file can repair the corruption. But registering files will bring potential risks, so we recommend that you make a backup of the partition with the Steam folder saved before you do in case something goes wrong.

Step 1. Right-click the Start button and select Command Prompt (Admin) from the contextual menu.

Step 2. Type the regsvr32 steamui.dll command in the elevated command prompt and hit Enter.

run regsvr32 steamui.dll command

Step 3. Restart your computer and check if the steamui.dll error still exists.

Fix 8. Delete the Beta Version of Steam

If you are using a Steam Beta version, it is very likely that you may encounter the error. You can resolve it by deleting the Beta version.

Here’s how:

Step 1. Open your File Explorer, go to your Steam directory and find its Package folder.

Step 2. In the Package folder, right-click a file named Beta and select Delete.

delete the Beta version of Steam

Step 3. Reboot your computer and restart your Steam. Then the necessary steam file will be download automatically.

Fix 9. Run a Malware Scan of Your Entire System

In addition, the virus or malware of the system will damage the steamui.dll file. For this issue, you can use the Windows Defender virus to scan malware of your entire system.

Step 1. Open the Windows Defender via the search box.

Step 2. In the pop-up window, navigate to Virus & threat protect on the left and then click the Run a new advanced scan on the right.

click Run a new advanced scan

Step 3. In all listed scan types, select a Full scan and click the Scan now button. This scan will take you more than one hour, so you need to wait patiently.

click scan now

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Fix 10. Check Your Memory and Hard Drive

If the Steam.dll error still persists after you try all the above methods, we have to recommend that check your memory and hard drive for corruption. As mentioned above, the hardware failures also can bring error.

Here are several free RAM memory test tools that can help you. Detailed information you can refer to this post: Here Are Free RAM Test Programs to Check Your Computer’s RAM.

Probably you may want to run chkdsk /f command to check the hard drive errors. However, sometimes this command cannot run smoothly as you expect and you may encounter errors like “chkdsk write protected”, “chkdsk gets stuck” and so on.

In order to check your hard drive quickly, we recommend that you use a professional tool. Here MiniTool Partition Wizard Free version can help to do that.

Free Download

Step 1. Launch this program to get its main interface, and then select the partition you want to check and click Check File System on the left pane.

click Check File System

Step 2. In the pop-up window, you can pick one from the 2 options. Here we recommend you choose Check & fix detected errors and click Start.

select Check & fix detected errors and click start

Step 3. Click Yes and restart your computer, this program will automatically check your hard drive and fix errors.

click Yes

In addition, you need to check if there are bad sectors on your hard drive. The Surface Test feature of the program can help you to do that easily.

click Surface Test on the left pane

A few days ago, I became unable to open Steam. It crashed before loading with the message Fatal error, failed to load steamui.dl, the method 5 helped me fix the problem. You may also try these methods in this post. Click to tweet

Final Words

The top 10 methods to fix “Fatal error, failed to load steamui.dll” are explained. Now, it’s your turn to have a try!

Welcome to leave your ideas in the comment area or you can send us an email via [email protected]if you have any questions.

Failed to Load Steamui.dll FAQ

????What is Steam.dll?
Steam.dll is a non-system process of the software that you installed on your system. It is an executable file on your hard drive. Due to most programs data are stored in your hard disk and in the system's registry. So, once your hard drive suffered fragmentation or other invalid entries, you may encounter the steam.dll error
????How do I install a DLL file?
  1. In a nutshell, copy the original .dll file to the location C: \Windows\System32.
  2. Press Win + R keys to open the Run dialog box, and then type cmd in it and hit Enter.
  3. Type the regsvr32 filename.dll command and press Enter key. After that, the .dll file will be installed automatically.
????How do I fix a missing dll file?
A great may users are troubled by the errors like D3DCOMPILER_47.dll is missing, physxloader.dll is missing and so on. Here are common ways.
  1. Restart your computer.
  2. Restore the deleted .dll file from the Recycle Bin.
  3. Use a file recovery tool.
  4. Undo recent changes with System Restore point.
????Where DLL files are stored in Windows 7?
If you are using 32-bit version of Windows 7, you should find the .dll files in the location C:\Windows\System32\ directory. While on the 64-bit version of Windows .dll files should be located in C:\Windows\SysWOW64\ directory.
????How do I locate my Steam ID?
  1. Open your Steam, and then click View on the upper left corner.
  2. Select Settings and click on Interface on the left pane.
  3. Select the checkbox of the Display Steam URL address bar option when available and click OK.
  4. Click on your Steam username to view the Steam ID.
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