如果您在 Windows 11/10 设备上尝试启动Steam时遇到^(Steam)Steam致命错误 -无法加载 steamui.dll^{(Failed to load steamui.dll)}，那么这篇文章旨在帮助您。在这篇文章中，我们将确定可能的原因，并提供您可以尝试成功解决此问题的最合适的解决方案。

此错误的最常见原因是Stamui.dll文件丢失或损坏。此错误的其他可能原因如下。

• 您不小心删除了 steamui.dll 文件。
• 过时的设备驱动程序。

无法加载 steamui.dll 错误

如果您遇到此问题，您可以尝试以下我们推荐的解决方案（不分先后顺序），看看这是否有助于解决无法加载 DL^{(Failed to load DL)} L 问题。

1. 重新注册 steamui.dll
2. 清除 Steam 下载缓存
3. 修改 Steam.exe
4. 删除^(Delete)libswscale-3.dll 和 steamui.dll
5. 删除 Beta 版本（如果适用）
6. 卸载并重新安装 Steam。

让我们看一下关于列出的每个解决方案所涉及的过程的描述。

1]重新注册steamui.dll

要重新注册 steamui.dll 文件，请执行以下操作：

• 按Windows key + R调用“运行”对话框。
• 在“运行”对话框中，键入cmd，然后按CTRL + SHIFT + ENTER以open Command Prompt in admin/elevated mode。
• 在命令提示符窗口中，键入以下命令并按Enter。

regsvr32 steamui.dll

命令执行后，重新启动设备并查看问题是否已解决。如果没有，请尝试下一个解决方案。

阅读^(Read)：如何修复丢失的 DLL 文件错误^{(How to fix Missing DLL files errors)}。

2]清除Steam下载缓存

只需清除下载缓存即可修复此错误。这是因为该方法通常用于解决游戏无法下载和启动的问题。

当您之后登录Steam^(Steam)时，此方法不会影响您当前安装的游戏。

请执行下列操作：

• 打开您的Steam客户端，然后 从左上角的客户端菜单导航至Steam > Settings 
• 在 设置 ^(Setting )窗口中，导航到左侧的 下载 ^(Download )选项卡，然后单击  左侧窗格中的清除下载缓存。^{(Clear Download Cache)}
• 单击 确定 ^(OK )以确认此操作，您将需要再次登录Steam。
• 重新启动计算机以保存此更改。

或者，您可以运行 Steam 清洁器来删除缓存。

3]修改Steam.exe

请执行下列操作：

• 导航^(Navigate)到您的Steam目录，该目录应该是：

C:\Program Files (x86)\Steam\

• 右键单击Steam.exe 并选择 创建快捷方式。^{(Create Shortcut.)}
• 现在右键单击此快捷方式并选择 属性。^{(Properties.)}
• 在目标文本框中， 在路径末尾添加-clientbeta client_candidate ，如下所示：^{(-clientbeta client_candidate)}

“C:\Program Files (x86)\Steam\Steam.exe” -clientbeta client_candidate

• 单击应用^(Apply)>确定^(OK)。

如果您运行Shortcut，Steam应该能够正确打开。否则，请尝试下一个解决方案。

4]删除^(Delete)libswscale-3.dll和steamui.dll文件

有时，无法加载 steamui.dll^{(Failed to load steamui.dll)}错误可能并不表示该文件确实丢失了。这只是因为 libswscale-3.dll 和 steamui.dll 文件已损坏。在这种情况下，您可以删除这两个文件，当您下次运行Steam时， ^(Steam)Steam会自动将这些文件替换为新文件。就是这样：

• 右键单击桌面上的 Steam 并选择 Properties。
• 转到 快捷方式 ^(Shortcut )部分，然后单击  窗口底部的打开文件位置。^{(Open File Location)}
• 在该位置，找到并右键单击libswscale-3.dll和 SteamUI.dll并选择Delete。
• 重新启动 Steam^{(Restart Steam)}并查看错误是否仍然存在。

5]删除Beta^{(Delete Beta)}版本（如果适用）

如果您使用的是Steam Beta版本，您很可能会遇到该错误。您可以通过删除Beta版本来解决它。就是这样：

• 按Windows key + E打开文件资源管理器^{(open File Explorer)}。
• 导航^(Navigate)到Steam目录并找到它的Package 文件夹^{(Package folder)}。
• 在Package文件夹中，右键单击名为 Beta 的文件并选择 Delete。
• 重新启动^(Reboot)您的计算机并重新启动您的 Steam。

必要的蒸汽文件将自动下载。但是，如果问题仍未解决，您可以尝试下一个解决方案。

相关文章^{(Related post)}：修复 Windows 10 上无效的 Depot 配置 Steam 错误^{(Fix Invalid Depot Configuration Steam Error on Windows 10)}。

6]卸载并重新安装Steam

该解决方案只需要您通过程序^(Programs)和功能^(Features)小程序从计算机上卸载 Steam^{(uninstalling Steam)}，然后从官方网站下载Steam 并重新安装。^(download)之后，损坏的 steamui.dll 文件将被替换为新的健康副本。

在卸载Steam之前，请导航至以下Steam目录：

C:\Program Files (x86)\Steam\Steamapps

您将在Steamapps^(Steamapps)文件夹中找到所有下载的游戏或应用程序。确保^(Make)将此文件夹备份到另一个位置。

重新安装Steam后，您现在可以将 已备份的Steamapps文件夹移至^(Steamapps)Steam目录。然后再次运行Steam并检查错误是否再次出现。

这些解决方案中的任何一个都应该适合您！

Fix Failed to load steamui.dll error on Windows 11/10

If you encounter the Steam fаtal error – Failed to load steamui.dll when trying to start Steam on your Windows 11/10 device, then this post is intended to help you. In this post, we will identify the possible causes as well as provide the most suitable solutions you can try to successfully resolve this issue.

The most common reason for this error is that the Stamui.dll file is missing or corrupted. Other possible causes of this error is as follows.

• You deleted the steamui.dll file accidentally.
• Outdated device drivers.

Failed to load steamui.dll error

If you’re faced with this issue, you can try our recommended solutions below in no particular order and see if that helps to resolve the Failed to load DLL issue.

1. Re-register steamui.dll
2. Clear Steam Download Cache
3. Modify Steam.exe
4. Delete libswscale-3.dll and steamui.dll
5. Delete Beta version (if applicable)
6. Uninstall and reinstall Steam.

Let’s take a look at the description of the process involved concerning each of the listed solutions.

1] Re-register steamui.dll

To re-register steamui.dll file, do the following:

• Press Windows key + R to invoke the Run dialog.
• In the Run dialog box, type cmd and then press CTRL + SHIFT + ENTER to open Command Prompt in admin/elevated mode.
• In the command prompt window, type the command below and hit Enter.

regsvr32 steamui.dll

Once the command executes, restart your device and see if the issue is resolved. If not, try the next solution.

Read: How to fix Missing DLL files errors.

2] Clear Steam Download Cache

This error can be fixed by simply clearing the download cache. This is because the method is often used to solve the problems with games that fail to download and start.

This method won’t affect your currently installed games when you log into your Steam afterward.

Do the following:

• Open your Steam client, and then navigate to Steam > Settings from the top left client menu.
• In the Setting window, navigate to the Download tab on the left and click Clear Download Cache on the left pane.
• Click OK to confirm this action and you will need to login to Steam again.
• Restart your computer to save this change.

Alternatively, you can run the Steam Cleaner to delete the cache.

3] Modify Steam.exe

Do the following:

• Navigate to your Steam directory which should be:

C:\Program Files (x86)\Steam\

• Right-click on Steam.exe and select Create Shortcut.
• Now right-click on this shortcut and select Properties.
• In the target text box, add -clientbeta client_candidate at the end of the path, so that will look like:

“C:\Program Files (x86)\Steam\Steam.exe” -clientbeta client_candidate

• Click Apply > OK.

If you run the Shortcut, Steam should be able to open without errors. Otherwise, try the next solution.

4] Delete libswscale-3.dll and steamui.dll files

Sometimes, the Failed to load steamui.dll error may not indicate that the file is really missing. It is just because the libswscale-3.dll and steamui.dll files are corrupted. In this case, you can delete both files and Steam will automatically replace the files with new ones when you run Steam next time. Here’s how:

• Right-click the Steam on your desktop and select Properties.
• Go to the Shortcut section and click Open File Location on the bottom of the window.
• At the location, find and right-click the libswscale-3.dll and SteamUI.dll and select Delete.
• Restart Steam and see if the error still persists.

5] Delete Beta version (if applicable)

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:

• Press Windows key + E to open File Explorer.
• Navigate to Steam directory and find its Package folder.
• In the Package folder, right-click a file named Beta and select Delete.
• Reboot your computer and restart your Steam.

The necessary steam file will be download automatically. However, if the issue is still unresolved, you can try the next solution.

Related post: Fix Invalid Depot Configuration Steam Error on Windows 10.

6] Uninstall and reinstall Steam

This solution simply requires you uninstalling Steam from your computer via the Programs and Features applet and then download Steam from the the official website and reinstall it. After that, the corrupted steamui.dll file will be replaced with a new and healthy copy.

Before you uninstall Steam, navigate to the Steam directory below:

C:\Program Files (x86)\Steam\Steamapps

You will find all the download games or applications in the Steamapps folder. Make sure to back up this folder to another location.

After you have reinstalled Steam, you can now move the Steamapps folder you have backed up to the Steam directory. Then run Steam again and check if the error reappears.

Any of these solutions should work for you!

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