尝试在您的计算机上运行应用程序时，您可能会发现它经常崩溃或只是拒绝启动。它还可能显示错误消息 - .NET 运行时错误 1026在^{(.NET runtime error 1026)}事件查看器^{(Event Viewer)}下带有以下描述-由于未处理的异常，该进程已终止，异常代码 c00000fd^{(The process was terminated due to an unhandled exception, Exception code c00000fd)}。

修复 .NET 运行时错误 1026

事件 1026 表示问题出在应用程序本身，与.NET Framework相关的运行时错误^{(Runtime error)}1026主要发生在框架在运行时失败或崩溃，因为它没有被编程为正确处理（“异常”）。要解决此问题，您可以按照下面给出的任何方法！

1. 禁用并重新启用 .NET 框架
2. 重新安装运行时库
3. 在干净启动状态下进行故障排除

让我们详细探讨一下列出的方法！

1]禁用^(Disable)并重新启用.NET框架

在许多情况下都观察到，您不断收到此错误消息的原因是Windows 10预装了.NET Framework 4.7和 4.5。但是，某些应用程序可能需要框架的早期迭代，例如 2.0、3.5 或 4.0。您可以尝试以下方法并检查它是否可以解决您的问题。

• 在Windows搜索栏中键入“打开或关闭 Windows 功能^{(Turn Windows features on or off)(Turn Windows features on or off)}”，然后按Enter^(Enter)。
• 当Windows 功能窗口打开时，单击 .NET ^{(Windows Features)}Framework 4.7 Advance Services旁边的“+”图标以展开其菜单。
• 取消选中它下面列出的所有选项。
• 卸载框架并重新启动您的 PC。
• 接下来，重新安装.NET Framework，返回Windows 功能窗口，然后单击^{(Windows Features)}.NET Framework 4.7 Advance Services旁边的“+”图标。
• 现在，检查所有选项并再次重新启动计算机。

运行应用程序/程序以检查问题是否已解决。

阅读^(Read)：如何检查已安装的 .NET Framework 版本^{(How to check .NET Framework version installed)}。

2]重新安装运行时库

您可能会因为更新而看到错误，例如可能未正确或完全安装的MS Visual C++ package要修复它，请卸载当前包并安装新副本。

• 转到程序^(Programs)和功能^(Features)，找到并突出显示Microsoft Visual C++ Redistributable Package。
• 右键单击它并选择卸载^(Uninstall)选项。
• 重新启动计算机。

从 Microsoft下载最新的可再发行包，然后安装它。^{(redistributable package)}

阅读^(Read)： 解决 .NET Framework 安装问题。

3]在干净启动状态下进行^{(Boot State)}故障排除^{(Troubleshoot)}

在Windows中，许多不同的驱动程序、设置和程序同时相互交互或通信。这种多变的环境可能会导致软件冲突，这种冲突可能以多种方式表现出来，如 .NET运行时^(Runtime)错误 1026。执行干净启动可能有助于查明冲突并解决它。

重要的是要注意，可以为多种应用程序记录相同的事件，因此有多种解决方案。

例如，“System.Net.HttpListenerException”可能与HTTP请求的问题有关，由本地TCP/IP 配置或网络连接问题引起，因此有一些不同的解决方案。

如果您知道与上述解决方案不同的任何解决方案，请在下面的评论部分与我们分享。

Fix .NET Runtime Error 1026, Exception code c00000fd

While tryіng to run an application on yoυr computer, you may find іt crashing frequently or just refusіng to start. It may also display an error meѕsage – .NET runtime error 1026 bearing the following description under Event Viewer – The process was terminated due to an unhandled exception, Exception code c00000fd.

Fix .NET Runtime Error 1026

Event 1026 indicates that the problem lies with the application itself and Runtime error 1026 associated with .NET Framework mainly occurs when the framework fails or crashes while running as it was not programmed to handle properly (an “exception”).To fix this, you can follow any of the methods given below!

1. Disable and re-enable the .NET framework
2. Re-install Runtime Libraries
3. Troubleshoot in a Clean Boot state

Let’s explore the listed methods in a bit of detail!

1] Disable and re-enable the .NET framework

It has been observed in many cases, the reason you keep getting this error message is that Windows 10 comes with .NET Framework 4.7 and 4.5 preinstalled. However, some of the applications might require an earlier iteration of the framework like 2.0, 3.5, or 4.0. You can try the following method and check if it solves your problem.

• Type ‘Turn Windows features on or off‘ in the Windows search bar and press Enter.
• When the Windows Features window opens, click on the ‘+’ icon, adjacent to .NET Framework 4.7 Advance Services to expand its menu.
• Uncheck all the options listed under it.
• Uninstall the framework and restart your PC.
• Next, reinstall the .NET Framework, go back to the Windows Features window, and click on the ‘+’ icon, adjacent to .NET Framework 4.7 Advance Services.
• Now, check all the options back and restart the computer again.

Run the application/program to check if the problem is resolved.

Read: How to check .NET Framework version installed.

2] Re-install Runtime Libraries

It’s likely that you are seeing the error because of an update, like the MS Visual C++ package which might not be installed properly or completely. To fix it, uninstall the current package and install a fresh copy.

• Go to Programs and Features, find and highlight the Microsoft Visual C++ Redistributable Package.
• Right-click it and choose the Uninstall option.
• Reboot your computer.

Download the latest redistributable package from Microsoft then install it.

Read: Troubleshoot .NET Framework Installation Issues.

3] Troubleshoot in a Clean Boot State

In Windows, many different drivers, settings, and programs are interacting or communicating with each other simultaneously. This varied environment may lead to software conflicts that can manifest in several ways, as .NET Runtime Error 1026. Performing a clean boot may help in pinpointing the conflict and resolving it.

It is important to note that the same event can be recorded for a wide variety of applications and thus, have multiple solutions.

For instance, the ‘System.Net.HttpListenerException’, may be related to a problem with an HTTP request, caused by the local TCP/IP configuration or a network connection issue and thus have some different solutions.

If you are aware of any different solutions than the ones described above, share them with us in the comments section below.

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