Checking If the Operating System Is Windows in C# & .NET

In a previous post, “Checking If the Operating System Is Linux in C# & .NET”, we looked at a simple API to check if the operating system is Linux.

In this post, we’ll cover the same for Windows.

Unsurprisingly, the API is OperatingSystem.IsWindows():

void Main()
{
  Console.WriteLine(OperatingSystem.IsWindows());
}

This will print the following if running on Windows.

This just checks whether the underlying operating system is Windows. For more granular details, there are other APIs that you can turn to.

TLDR

You can use OperatingSystem.IsWindows() to check if your code is running on Windows.