安装Windows更新KB3136000后，WPF应用程序在更改CurrentThread文化时表现出意外 .

在WPF中执行以下代码（以.NET Framework 4.6.1为目标）

public MainWindow()
{
    var defaultCultureInfo = string.Format("Default Culture: Culture: {0}, UICulture: {1}, ThreadID: {2}",
        Thread.CurrentThread.CurrentCulture, Thread.CurrentThread.CurrentUICulture, Thread.CurrentThread.ManagedThreadId);
    var culture = new CultureInfo("hu-HU");
    CultureInfo.DefaultThreadCurrentCulture = culture;
    CultureInfo.DefaultThreadCurrentUICulture = culture;
    var newCultureInfo = string.Format("New Culture (Should be hu-HU): Culture: {0}, UICulture: {1}, ThreadID: {2}",
        Thread.CurrentThread.CurrentCulture, Thread.CurrentThread.CurrentUICulture, Thread.CurrentThread.ManagedThreadId);

    System.Diagnostics.Trace.WriteLine(defaultCultureInfo);
    System.Diagnostics.Trace.WriteLine(newCultureInfo);

    InitializeComponent();
}

给出以下结果（德语是我的OS语言）：

Default Culture: Culture: de-DE, UICulture: de-DE, ThreadID: 8
New Culture (Should be hu-HU): Culture: de-DE, UICulture: de-DE, ThreadID: 8

在以.NET Framework 4.5为目标时执行相同的代码会产生以下（正确的）结果：

Default Culture: Culture: de-DE, UICulture: de-DE, ThreadID: 8
New Culture (Should be hu-HU): Culture: hu-HU, UICulture: hu-HU, ThreadID: 8

在针对.NET Framework 4.6.1时，在控制台应用程序中执行类似的代码也会得到正确的结果 .

在安装KB3136000之后，将WPF应用程序的文化更改为与操作系统文化不同的文本时，似乎会出现此问题 .

有没有人遇到过类似的问题？有没有办法在没有Microsoft帐户的情况下向Microsoft报告问题 . 我们在Connect Microsoft上尝试的过程在第一步后失败：“您无权提交此连接的反馈 . ”

编辑：

启动一个新线程也有奇怪的行为（.NET 4.6.1，WPF） . 将以下代码添加到上面的代码中：

var thread = new Thread(new ThreadStart(() =>
    {
        Console.WriteLine("In Thread: Culture: {0}, UICulture: {1}, {2}", Thread.CurrentThread.CurrentCulture, Thread.CurrentThread.CurrentUICulture, Thread.CurrentThread.ManagedThreadId);
    }));
thread.Start();
thread.Join();
Console.WriteLine("After Thread-Execution: Culture: {0}, UICulture: {1}, {2}", thread.CurrentCulture, thread.CurrentUICulture, thread.ManagedThreadId);

结果：

In Thread: Culture: de-DE, UICulture: de-DE, 10
After Thread-Execution: Culture: hu-HU, UICulture: hu-HU, 10
.net wpf culture windows-update