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ReactOS Windows NT Compatibility

ReactOS's progress and limitations in reimplementing Windows NT as an open-source OS

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Jan 23, 2026
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How successful has ReactOS been in replicating Windows, so far?

has made real, verifiable progress toward reimplementing the family as a clean‑room, open‑source OS—booting, running many Windows binaries and drivers, and closing thousands of API test failures—yet i...

Jan 27, 2026
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Which Windows applications and drivers are known to run reliably on ReactOS as of 2026?

remains an alpha, community-driven reimplementation of that can run a meaningful subset of legacy Windows applications and some drivers, but it is explicitly recommended for evaluation and testing rat...