HomeTechnologyMicrosoft clarifies Windows is not being rewritten in Rust after viral job post sparks rumors

Microsoft clarifies Windows is not being rewritten in Rust after viral job post sparks rumors

Microsoft has denied rumors about rewriting Windows in Rust after a viral job post sparked confusion online. The company clarified it is working on research to build tools that help migrate old C and C++ codebases to memory safe languages like Rust, not rebuilding the Windows operating system itself.

December 26, 2025 / 11:30 IST
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Microsoft
Microsoft

A Microsoft engineer’s LinkedIn job post recently went viral and set parts of the tech world on fire. The post, written by Microsoft Distinguished Engineer Galen Hunt, sounded bold and ambitious, and many people interpreted it as Microsoft’s new master plan for Windows. Some even thought the company was preparing to rewrite the entire operating system using Rust and AI. That speculation triggered heated debates, outrage, and a lot of online noise. Now, Microsoft and Hunt himself have stepped in to shut the rumors down.

So, what did the original post actually say?

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Hunt was hiring a Principal Software Engineer for his team in Redmond, and one line in the job description grabbed everyone’s attention. He said his goal was to remove every line of C and C++ code from Microsoft by 2030, replacing it with Rust. He also talked about using AI and algorithms to refactor huge codebases at an almost unbelievable scale, using a guiding motto: one engineer, one month, one million lines of code. The idea was not about rewriting Windows 11 or future versions, but about evolving a code-processing system that could eventually help migrate large C and C++ systems to Rust.

The post included phrases like “eliminating technical debt at scale” and “pioneering new tools and techniques,” which many readers took to mean a sudden and major strategy shift. But that was not the intent.