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I did some research [0] and I cannot find anyone claiming that more than ~15% of the Win 2k source code was available. People are able to build and boot Win NT

• trentnelson 9y ago
  There was a third leak, circa 2003, the Windows Research Kernel, which is what you'd get if, say, you had an academic license as part of a university or something. That one you could very much build and alter.