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Just out of curiosity I want to know what language was used to write Windows itself.

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closed as not a real question by Synetech, Canadian Luke, 8088, Joe Taylor, Diogo Aug 9 '12 at 12:19

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

up vote 12 down vote accepted

We use almost entirely C, C++, and C# for Windows. Some areas of code are hand tuned/hand written assembly.

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Answered on SO

Well, the Windows kernel is still almost entirely C. However, there are different aspects that use C++, say some parts of the shell and so forth. The core is C. Other languages, perhaps even .NET might be used in some corners for certain applications but C is the OS language of choice in Windows.

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thanks for the answer!!! – Nobody Apr 29 '10 at 20:16

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