Earlier quoted context omitted.
The reasons that Windows is awful have nothing to do with code quality. Windows is awful because of intentional choices Microsoft made (e.g., bloatware that gets reinstalled with every update, mandatory Microsoft accounts, and mandatory telemetry).
Their code were awful about 30 years before that.
>there is nothing really surprising in this leak. Microsoft does not steal open-source code. Their older code is flaky, their modern code excellent. Their programmers are skilled and enthusiastic. Problems are generally due to a trade-off of current quality against vast hardware, software and backward compatibility.
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