Windows
Can I run tests in parallel on Windows?
Quick answer
Yes. dotnet test --parallel and MSBuild -m both use multiple cores.
The detail that matters
Defender exclusions matter more here than core count — scanning dominates otherwise.
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Related
Can GitHub Actions run Windows builds?Yes. Windows Server runners are available both from GitHub and from managed providers.Can I run Windows Server 2022 builds?Yes. runnerhut offers Windows Server 2022 and 2025 images.Which Windows versions are supported?Windows Server 2022 and Windows Server 2025.Is Visual Studio preinstalled?Yes. Build Tools for 2022 and 2025 ship with the C++, .NET desktop, ASP.NET and UWP workloads.